# County of Isenburg

The County of Isenburg was a region of Germany located in southern present-day Hesse, located in territories north and south of Frankfurt. The states of Isenburg emerged from the Niederlahngau (located in the Rhineland-Palatinate), which partitioned in 1137 into Isenburg-Isenburg and Isenburg-Limburg-Covern. These countships were partitioned between themselves many times over the next 700 years.

## House of Isenburg

The House of Isenburg was an old aristocratic family of medieval Germany, named after the castle of Isenburg in Rhineland-Palatinate. Occasionally referred to as the House of Rommersdorf before the 12th century, the house originated in the Hessian comitatus of the Niederlahngau in the 10th century. It partitioned into the lines of Isenburg-Isenburg and Isenburg-Limburg-Covern in 1137, before partitioning again into smaller units, but by 1500 only the lines of Isenburg-Büdingen (in Upper Isenburg) and Lower Isenburg remained. In 1664 the Lower Isenburg branch died out. The Büdingen line continued to partition, and by the beginning of the 19th century the lines of Isenburg-Büdingen, Isenburg-Birstein, Isenburg-Meerholz and Isenburg-Wächtersbach existed. Today still exist the (Roman Catholic) princes of Isenburg (at Birstein), the (Lutheran) princes of Ysenburg (at Büdingen and Ronneburg) and the (Lutheran) counts of Ysenburg-Philippseich.

## "Family tree" of the Isenburg countships

Isenburg, the original countship was divided upon the death of Count Rembold II in 1137 into:
* Isenburg (or Isenburg-Isenburg), 1137–1199, eventually dividing c. 1210 into:
** Isenburg-Braunsberg, 1210–1388, when it was renamed Isenburg-Wied. Isenburg-Wied, in turn, existed from 1388 to 1454, when it passed by marriage to the Lords of Runkel and was superseded by the Countship of Wied in 1462.
** Nieder-Isenburg (Lower Isenburg), 1218–1502 when it was divided into:
*** Isenburg-Grenzau, 1502–1664. After the death of Count Ernest in 1664 without direct heirs, his territories were claimed back as feudal tenures by the Archbishoprics of Cologne and Trier, and the Abbey-principality of Fulda. The core territories including Isenburg were passed on by Fulda to the Counts of Walderdorff. They had to share them according to a later agreement with the Counts of Wied, by then a cadet branch of the Isenburgs.
*** Isenburg-Neumagen, 1502–1554, when it passed by marriage to the Counts of Sayn-Homburg.
* Isenburg-Kempenich, 1137–1424, when it passed to the Lords of Schöneck. In 1434, it passed to the Archbishop of Trier, who sold the territory to the Counts of Virneburg.
* Isenburg-Limburg-Covern, 1137–1158, when it was divided into:
** Isenburg-Covern, 1158–1306, when it passed to Isenburg-Cleberg.
** Isenburg-Grenzau, 1158–1258, when it was divided into:
*** Isenburg-Limburg, 1258–1406, when it was annexed by the Archbishopric of Trier
*** Isenburg-Grenzau, 1258–1287, when it was divided into:
**** Isenburg-Grenzau, 1287–1290, when it passed to Isenburg-Cleberg.
**** Isenburg-Arnfels, 1286–1379, when it passed to Isenburg-Wied.
**** Isenburg-Cleberg, 1287–1340, when it was divided into:
***** Isenburg-Grenzau, 1340–1439, when it passed to Nassau-Beilstein. It subsequently passed to the Archbishopric of Trier in 1446, and was finally purchased by the Counts of Nieder-Isenburg in 1460.
***** Isenburg-Büdingen, 1340–1511, when it was divided into:
****** Isenberg-Büdingen-Ronneburg, or Isenburg-Ronneburg, 1511–1601, when it was annexed by Isenburg-Büdingen-Birstein
****** Isenburg-Büdingen-Birstein (or Isenburg-Birstein), 1511–1628, which was divided into:
******* Isenburg-Birstein, 1628–1664, when it passed to Isenburg-Offenbach
******* Isenburg-Büdingen, 1628–1685, when it was divided into:
******** Isenburg-Büdingen, 1685–1806, when it was mediatized to the Principality of Isenburg
******** Isenburg-Wächtersbach, 1685–1806, when it was mediatized to the Principality of Isenburg
******** Isenburg-Meerholz, 1685–1806, when it was mediatized to the Principality of Isenburg
******** Isenburg-Marienborn, 1685–1725
******* Isenburg-Offenbach, 1628–1711, when it was divided into:
******** Isenburg-Birstein, 1711–1744, when it became the Principality of Isenburg-Birstein. The Principality existed from 1744 to 1806, when it was renamed the Principality of Isenburg, 1806–1814/5
******** Isenburg-Eisenberg, 1711–1758, when it was absorbed back into the Principality of Isenburg-Birstein
******** Isenburg-Philippseich, 1711–1806, when it was mediatized to the Principality of Isenburg

## Principality of Isenburg

It was not until 1806 that there was a state called simply "Isenburg". When the Holy Roman Empire was defeated by Napoleon of France in that year, the empire was abolished and the Confederation of the Rhine was established amongst the various German states. As an incentive to join the Confederation, it was stated that any state which joined could mediatise their neighbours. Prince Charles of Isenburg-Birstein joined the Confederation and was granted the mediatized Isenburgian Countships of Isenburg-Büdingen, Isenburg-Meerholz, Isenburg-Philippseich, and Isenburg-Wächtersbach. His Principality was renamed to Isenburg.
The Principality continued under the rule of Prince Charles through the Napoleonic era, but was mediatised by Austria in December 1813, at the insistence of King Frederick William III of Prussia, who was angered that Isenburg had raised a regiment for French service by recruiting Prussian deserters and vagabonds. Isenburg was one of only three original member princes of the Empire to be mediatized at the end of the Napoleonic era (the others being Leyen and prince-primate Dalberg, Prince of Aschaffenburg). This decision was confirmed at the Congress of Vienna. The lands of the principality were divided between the Grand Duchy of Hesse-Darmstadt and the Electorate of Hesse-Kassel (or Hesse-Cassel).

## Rulers
### House of Isenburg
#### Partitions of Isenburg under House of Isenburg rule

County of Isenburg (1041-1199) :
| | County of Kempenich (1st creation) (1137-1153) | County of Kempenich (1st creation) (1137-1153) | County of Kempenich (1st creation) (1137-1153) | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 | County of Kobern (1137-1306) female-branch of Isenburg-Vianden from 1275 |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | | | | | | | | | | | | | | | |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | County of Kempenich (2nd creation) (1199-1430) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | | | | | | | | | | | |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | County of Kempenich (2nd creation) (1199-1430) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | | | | | | | | | | County of Limburg (1227-1406) |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | County of Kempenich (2nd creation) (1199-1430) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | | County of Cleeberg (1167-1340) | County of Cleeberg (1167-1340) | County of Cleeberg (1167-1340) | County of Cleeberg (1167-1340) | County of Cleeberg (1167-1340) | County of Cleeberg (1167-1340) | County of Grenzau (1st creation) (1278-1292) | County of Arenfels (1278-1403) | County of Limburg (1227-1406) |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | County of Kempenich (2nd creation) (1199-1430) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | County of Grenzau (2nd creation) (1340-1439) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | | | | | | County of Arenfels (1278-1403) | County of Limburg (1227-1406) |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | County of Kempenich (2nd creation) (1199-1430) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | County of Grenzau (2nd creation) (1340-1439) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | Part of the County of Braunsberg (1371-1388) Renamed as: County of Wied (1388-1462) | County of Limburg (1227-1406) |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | County of Kempenich (2nd creation) (1199-1430) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | County of Grenzau (2nd creation) (1340-1439) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | Part of the County of Braunsberg (1371-1388) Renamed as: County of Wied (1388-1462) | To Archbishopric of Trier |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | County of Grenzau (2nd creation) (1340-1439) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | Part of the County of Braunsberg (1371-1388) Renamed as: County of Wied (1388-1462) | To Archbishopric of Trier |
| County of Braunsberg (1199-1388) Renamed as: County of Wied (1388-1462) | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | County of Lower Isenburg (1218-1502) | County of Lower Isenburg (1218-1502) | To Nassau-Beilstein (1439-1446) and Archbishopric of Trier (1446-1460) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | Part of the County of Braunsberg (1371-1388) Renamed as: County of Wied (1388-1462) | To Archbishopric of Trier |
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | | | | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | To County of Wied | To Archbishopric of Trier |
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | County of Neumagen (1502-1563) | County of Neumagen (1502-1563) | County of Grenzau (3rd creation) (1502-1664) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | County of Büdingen (1st creation) (1340-1511) | To County of Wied | To Archbishopric of Trier |
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | County of Neumagen (1502-1563) | County of Neumagen (1502-1563) | County of Grenzau (3rd creation) (1502-1664) | County of Ronneburg (1511-1601) | County of Birstein (1st creation) (1511-1664) | County of Birstein (1st creation) (1511-1664) | County of Birstein (1st creation) (1511-1664) | County of Birstein (1st creation) (1511-1664) | County of Birstein (1st creation) (1511-1664) | County of Birstein (1st creation) (1511-1664) | | | | | To County of Wied | To Archbishopric of Trier |
| To Archbishopric of Trier ||
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | To County of Sayn-Homburg | To County of Sayn-Homburg | County of Grenzau (3rd creation) (1502-1664) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | | | | | To County of Wied | To Archbishopric of Trier |
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | To County of Sayn-Homburg | To County of Sayn-Homburg | To Archbishopric of Trier, Archbishopric of Cologne and Abbots of Fulda | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | County of Büdingen (2nd creation) (1628-1806) (mediatized to Isenburg-Birstein in 1806) | | | | | | To County of Wied | To Archbishopric of Trier |
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | To County of Sayn-Homburg | To County of Sayn-Homburg | To Archbishopric of Trier, Archbishopric of Cologne and Abbots of Fulda | County of Marienborn (1673-1725) | | County of Meerholz (1673-1806) (mediatized to Isenburg-Birstein in 1806) | | | County of Offenbach (1628-1718) | County of Offenbach (1628-1718) | | To County of Wied | To Archbishopric of Trier |
| To County of Wied | To Lords of Schöneck (1424-1434), Archbishopric of Trier (1434) and Counts of Virneburg (from 1434) | To County of Sayn-Homburg | To County of Sayn-Homburg | To Archbishopric of Trier, Archbishopric of Cologne and Abbots of Fulda | County of Wachtersbach (1673-1806) (mediatized to Isenburg-Birstein in 1806) | County of Wachtersbach (1673-1806) (mediatized to Isenburg-Birstein in 1806) | County of Meerholz (1673-1806) (mediatized to Isenburg-Birstein in 1806) | | | | County of Philippseich (1711-1806) (mediatized to Isenburg-Birstein in 1806) | To County of Wied | To Archbishopric of Trier |
| To Archbishopric of Trier ||
| To Archbishopric of Trier |||||||

#### Table of rulers

| Ruler | Ruler | Born | Reign | Ruling part | Consort | Death | Notes |
| Gerlach (I) | | 966 | 1002 – 1018 | County of Lower Lahngau | Unknown at least two children | 1018 aged 51–52 | First known member of the family. |
| Rembold (I) | | c.1010? Son of Gerlach (I) | 1018 – 1072 | County of Isenburg (?) | Unknown at least one child | 1072 aged 61–62? | First known members of the family. They possibly held already the county of Isenburg |
| Gerlach (II) | | c.1010? Son of Gerlach (I) | 1018 – 1070 | County of Isenburg (?) | Unmarried | c.1070 aged 59–60? | First known members of the family. They possibly held already the county of Isenburg |
| Rembold (II) | | 1058 Son of Rembold (I) | 1072 – 1090 | County of Isenburg (?) | Unknown at least two children | c.1090 aged 51–52 | First known members of the family. They possibly held already the county of Isenburg |
| Gerlach I | | c.1060 Son of Rembold (II) | 1090 – 1115 | County of Isenburg | Unknown at least two children | c.1115 aged 49–50 | First members of the family firmly documented as Counts of Isenburg. |
| Rembold I | | c.1060 Son of Rembold (II) | 1090 – 1115 | County of Isenburg | Unmarried | c.1115 aged 49–50 | First members of the family firmly documented as Counts of Isenburg. |
| Rembold II | | c.1080 First son of Gerlach I | 1115 – 1137 | County of Isenburg | Catharina of Arnstein five children | 1137 aged 56–57 | Brothers and co-rulers. |
| Gerlach II | | c.1080 Second son of Gerlach I | 1115 – 1120 | County of Isenburg | Unmarried | c.1120 aged 39–40 | Brothers and co-rulers. |
| Gerlach III | | c.1110? First son of Rembold II and Catharina of Arnstein | 1137 – 1158 | County of Kobern | Jutta of Are three children | 1158 aged 47–48? | Sons of Rembold II, divided their inheritance. Siegfried didn't have documented children, so his land may have returned to Isenburg. After the childless death of Rembold III, his nephew Rembold IV kept Isenburg-Isenburg. |
| Rembold III | | c.1110? Second son of Rembold II and Catharina of Arnstein | 1137 – 1162 | County of Isenburg | Unmarried | 1162 aged 51–52? | Sons of Rembold II, divided their inheritance. Siegfried didn't have documented children, so his land may have returned to Isenburg. After the childless death of Rembold III, his nephew Rembold IV kept Isenburg-Isenburg. |
| Siegfried | | c.1110? Third son of Rembold II and Catharina of Arnstein | 1137 – 1153 | County of Kempenich | Justina of Kempenich no children | 1153 aged 42–43? | Sons of Rembold II, divided their inheritance. Siegfried didn't have documented children, so his land may have returned to Isenburg. After the childless death of Rembold III, his nephew Rembold IV kept Isenburg-Isenburg. |
| Rembold IV | | c.1130? First son of Gerlach III and Jutta of Are | 1153-1175 | County of Kempenich | Unknown two children | c.1175 aged 44–45? | Children of Gerlach III, divided their inheritance. Rembold inherited his childless uncles' possessions, while Gerlach inherited the property of their father. |
| Rembold IV | | c.1130? First son of Gerlach III and Jutta of Are | 1162-1175 | County of Isenburg | Unknown two children | c.1175 aged 44–45? | Children of Gerlach III, divided their inheritance. Rembold inherited his childless uncles' possessions, while Gerlach inherited the property of their father. |
| Gerlach IV | | c.1130? Second son of Gerlach III and Jutta of Are | 1158 – 1167 | County of Kobern | Unknown of Covern three children Unknown of Leiningen two children | 1167 aged 36–37? | Children of Gerlach III, divided their inheritance. Rembold inherited his childless uncles' possessions, while Gerlach inherited the property of their father. |
| Gerlach V | | c.1150? First son of Gerlach IV | 1167 – 1217 | County of Kobern | Unknown two children | 1217 aged 66–67? | Children of Gerlach IV, divided their inheritance. |
| Henry I | | c.1150? Second son of Gerlach IV | 1167 – 1227 | County of Cleeberg | Irmgard of Büdingen (d.c.1220) eight children | 1227 aged 76–77? | Children of Gerlach IV, divided their inheritance. |
| Rembold V | | c.1160? First son of Rembold IV | 1175 – 1215 | County of Kempenich | Hedwig, Lady of Kempenich two children | c.1215 aged 59–60? | Sons of Rembold IV, may have ruled jointly until 1199, when they made official the division of the inheritance. |
| Bruno I | | c.1160? First son of Rembold IV | 1175 – 1210 | County of Braunsberg | Theodora of Wied (d.1218) four children | 1210 aged 49–50? | Sons of Rembold IV, may have ruled jointly until 1199, when they made official the division of the inheritance. |
| Bruno II | | 1176 Son of Bruno I and Theodora of Wied | 1210 – 1255 | County of Braunsberg | Johanna two children | 1255 aged 78–79? | |
| Salentin I | | c.1190 First son of Rembold V and Hedwig of Kempenich | 1215 – 1219 | County of Lower Isenburg | Unknown at least one child | 1219 aged 28–29 | Children of Rembold V, divided their inheritance. |
| Theodoric I | | c.1190 Second son of Rembold V and Hedwig of Kempenich | 1215 – 1251 | County of Kempenich | Judith of Blankenheim (d.1252) one child Adelaide (d.1258)two children | 1251 aged 60–61? | Children of Rembold V, divided their inheritance. |
| Rosemann | | c.1200? Third son of Rembold V and Hedwig of Kempenich | 1215 – 1264 | County of Kempenich | Kunigunda of Büdingen-Gelnhausen (d.c.1250) one child | 1264 aged 63–64? | Children of Rembold V, divided their inheritance. |
| Gerlach VI | | c.1170 First son of Gerlach V | 1217 – 1235 | County of Kobern | Judith (d. July 1253) two children | c.1235 aged 64–65 | Sons of Gerlach V, possibly ruled jointly. |
| Henry I | | c.1170 Second son of Gerlach V | 1217 – 1235 | County of Kobern | Unmarried | c.1235 aged 64–65 | Sons of Gerlach V, possibly ruled jointly. |
| Henry II | | c.1200? First son of Henry I and Irmgard of Büdingen | 1220 – 29 September 1278 | County of Cleeberg | Matilda of Hochstaden (d.1264) 1246 eight children | 29 September 1278 aged 77–78? | Sons of Henry I, rule jointly until 1258, when they officially divided the land between them. |
| Gerlach I | | c.1210? Second son of Henry I and Irmgard of Büdingen | 1220 – January 1289 | County of Limburg | Imagina of Blieskastel (1233-1281) five children | January 1289 Black Forest aged 78–79? | Sons of Henry I, rule jointly until 1258, when they officially divided the land between them. |
| Henry II | | c.1210 Son of Gerlach VI and Judith | 1235 – 1269 | County of Kobern | Matilda c.1235 no children | 1269 aged 58–59 | Didn't have children, and the county passed to his sister. |
| Regency of Theodoric I, Count of Kempenich (1219-1224) | Regency of Theodoric I, Count of Kempenich (1219-1224) | Regency of Theodoric I, Count of Kempenich (1219-1224) | Regency of Theodoric I, Count of Kempenich (1219-1224) | Regency of Theodoric I, Count of Kempenich (1219-1224) | Regency of Theodoric I, Count of Kempenich (1219-1224) | Regency of Theodoric I, Count of Kempenich (1219-1224) | Like his uncle, regent and namesake in Lower Isenburg, he may have been also involved in the government of Kempenich. |
| Theodoric the Younger | | c.1210? Son of Salentin I | 1219 – 1273 | County of Lower Isenburg | Judith of Merenberg (d.1263) four children | 1273 aged 62–63? | Like his uncle, regent and namesake in Lower Isenburg, he may have been also involved in the government of Kempenich. |
| Bruno III | | c.1210 Son of Bruno II and Johanna | 1255 – 29 September 1278 | County of Braunsberg | Sophia of Runkel (d. 26 March 1266) one child Isolda of Heinsberg (d.c.1290) c.1270 two children | 29 September 1278 aged 67–68? | |
| Theodoric II | | c.1240? Son of Theodoric I and Judith of Blankenheim | 1264 – 1276 | County of Kempenich | Unmarried | 1276 aged 35–36? | Children of Theodoric II, possibly ruled jointly. |
| Gerard I | | c.1255 Son of Theodoric I and Adelaide | 1264 – 1287 | County of Kempenich | Beatrice (d.c.1275) four children | 1287 aged 31–32? | Children of Theodoric II, possibly ruled jointly. |
| Cecilia | | c.1210 Daughter of Gerlach VI and Judith | 1269 – 1275 | County of Kobern | Frederick of Vianden c.1225? at least one child | c. 1275 aged 64–65 | Sister of Henry II, inherited Kobern. |
| Salentin II | | c.1230? Son of Theodoric and Judith of Merenberg | 1275 – 1297 | County of Lower Isenburg | Agnes of Runkel (d.1316) ten children | 1297 aged 66–67 | |
| Frederick (II) | | c.1230? Son of Frederick of Vianden and Cecilia | 1275 – 1281 | County of Kobern | Irmgard of Esch (1220-1292) c.1250 four children | 1281 aged 46–47? | |
| Regency of Isolda of Heinsberg (c.1278-1284) | Regency of Isolda of Heinsberg (c.1278-1284) | Regency of Isolda of Heinsberg (c.1278-1284) | Regency of Isolda of Heinsberg (c.1278-1284) | Regency of Isolda of Heinsberg (c.1278-1284) | Regency of Isolda of Heinsberg (c.1278-1284) | Regency of Isolda of Heinsberg (c.1278-1284) | Associated his son Bruno to the county, but he predeceased him. |
| John I | | c.1270 Son of Bruno III and Isolda of Heinsberg | 29 September 1278 – 1327 | County of Braunsberg | Agnes of Lower Isenburg (d.1316) 1294 seven children Margaret of Vickerode (d.1324) no children | 1327 aged 56–57 | Associated his son Bruno to the county, but he predeceased him. |
| Bruno IV | | c.1305 Son of John I and Agnes of Lower Isenburg | c.1320 – 23 August 1325 | County of Braunsberg | Heilwig of Katzenelnbogen (d.1346) 2 December 1312 four children | 23 August 1325 aged 19–20 | Associated his son Bruno to the county, but he predeceased him. |
| Louis | | c.1250? First son of Henry II and Matilda of Hochstaden | 29 September 1278 – 1304 | County of Cleeberg | Heilwig of Tübingen-Giessen (d.c.1295) seven children | 1304 aged 53–54 | Sons of Henry II, divided the land between them. Eberhard left no heirs and his portion was inherited by his brother Louis. |
| Gerlach I | | c.1250? Second son of Henry II and Matilda of Hochstaden | 29 September 1278 – 1305 | County of Arenfels | Elisabeth of Clèves (1236-1290) five children | c.1305 aged 54–55? | Sons of Henry II, divided the land between them. Eberhard left no heirs and his portion was inherited by his brother Louis. |
| Eberhard | | c.1250? Third son of Henry II and Matilda of Hochstaden | 29 September 1278 – 25 November 1292 | County of Grenzau | Isolda of Heinsberg (d.c.1290) one child | 25 November 1292 aged 41–42? | Sons of Henry II, divided the land between them. Eberhard left no heirs and his portion was inherited by his brother Louis. |
| Grenzau annexed to Cleberg ||||||||
| Robin | | c.1250? Son of Frederick and Irmgard of Esch | 1281 – 1306 | County of Kobern | Elisabeth of Eppstein (d.1320) 26 May 1272 Kobern-Gondorf no children | 1306 aged 55–56? | Left no descendants. After his death, Kobern was annexed to the County of Cleeberg. |
| Kobern annexed to Cleberg ||||||||
| Theodoric III | | c.1270? First son of Gerard I and Beatrice | 1287 – 1325 | County of Kempenich | Kunigunde of Solms (d.1344) two children | c.1325 aged 54–55 | Sons of Gerard I, ruled jointly. |
| Simon I | | c.1270? Second son of Gerard I and Beatrice | 1287 – 1320 | County of Kempenich | Agnes of Trier 1293 two children | c.1320 aged 49–50? | Sons of Gerard I, ruled jointly. |
| John I the Blind | | 1266 Son of Gerlach I and Imagina of Blieskastel | January 1289 – 19 September 1312 | County of Limburg | Elisabeth of Geroldseck-Veldenz (1266-1285) two children Uda of Ravensberg 25 August 1292 five children | 19 September 1312 aged 45–46 | |
| Salentin III | | c.1280? Son of Salentin II and Agnes of Runkel | 1297 –1351 | County of Lower Isenburg | Catharina one child Matilda of Isenburg-Kobern (d.1350) 1304 six children | 1351 aged 70–71? | |
| Lothar | | c.1290 Son of Louis and Heilwig of Tübingen-Giessen | 1304 – 4 February 1341 | County of Cleeberg | Isengard of Falkenstein-Münzenberg 1318 five children | 4 February 1341 aged 50–51? | |
| Theodoric | | c.1280? First son of Gerlach I and Elisabeth of Clèves | 1305 – 1334 | County of Arenfels (at Herschbach) | Hedwig of Neuenahr (d.c.1330) 14 August 1304 five children | 1334 aged 53–54? | Sons of Gerlach I, divided their inheritance. |
| John | | c.1280? Second son of Gerlach I and Elisabeth of Clèves | 1305 – 17 November 1348 | County of Arenfels (at Arenfels proper) | Catharina no children Jutta of Arscheid (d.c.1385) no children | 17 November 1348 aged 67–68? | Sons of Gerlach I, divided their inheritance. |
| Gerlach II the Elder | | c.1295 Son of John I and Uda of Ravensberg | 19 September 1312 – 14 April 1355 | County of Limburg | Agnes of Nassau-Siegen 1312 three children Kunigunde of Wertheim 20 December 1323 eight children | 14 April 1355 aged 59–60 | |
| Simon II | | c.1290? First son of Theodoric III and Kunigunde of Solms | 1325 – 1339 | County of Kempenich | Catharina of Sayn (d.c.1345) one child | 1339 aged 48–49? | Cousins, ruled jointly. |
| Theodoric IV the Arsonist | | c.1290? Second son of Theodoric III and Kunigunde of Solms | 1329 – 1341 | County of Kempenich | Unmarried | 1341 aged 50–51? | Cousins, ruled jointly. |
| Gerard II | | c.1290 Son of Simon I and Agnes of Trier | 1329 – 1335 | County of Kempenich | Unmarried | c.1335 aged 44–45? | Cousins, ruled jointly. |
| William I | | c.1315 Son of Bruno IV and Heilwig of Katzenelnbogen | 1327 – 17 July 1383 | County of Braunsberg | Agnes of Virneburg (d.1352/3) 1329 (annulled 12 September 1351) five children Johanna of Jülich (d.1362) 27 July 1354 one child Lysa, Countess of Isenburg-Arenfels 11 November 1362 two children | 17 July 1383 aged 67–68 | Grandson of John I. |
| Simon III | | c.1310? Son of Simon II and Catharina of Sayn | 1341 – 1360 | County of Kempenich | Hedwig of Schönberg (d.1367) six children | c.1360 aged 49–50? | |
| Henry I | | 1320 First son of Lothar and Isengard of Falkenstein-Münzenberg | 4 February 1341 – 1379 | County of Büdingen | Adelaide of Hanau 29 July 1332 six children | 1379 aged 58–59 | Sons of Lothar, divided their inheritance. |
| Philip I | | c.1320 Second son of Lothar and Isengard of Falkenstein-Münzenberg | 4 February 1341 – 22 March 1370 | County of Grenzau | Margaret of Katzenelnbogen (d.9 July 1370) 1338 two children | 22 March 1370 aged 49–50 | Sons of Lothar, divided their inheritance. |
| Gerlach II | | c.1310? Son of Theodoric and Hedwig of Neuenahr | 17 November 1348 – 14 August 1371 | County of Arenfels | Elisabeth of Braunshorn (d.15 November 1339) six children Demut of Roesberg (d.c.1365) two children | 14 August 1371 aged 60–61? | |
| Salentin IV | | c.1320 Son of Salentin III and Matilda of Isenburg-Kobern | 1351 – 1364 | County of Lower Isenburg | Catharina of Solms-Sponheim 25 February 1341 two children | 1364 aged 43–44 | |
| Gerlach III the Younger | | c.1325 First son of Gerlach II and Kunigunde of Wertheim | 14 April 1355 – April 1366 | County of Limburg | Elizabeth of Falkenstein (d. 9 April 1366) 9 November 1356 no children | April 1366 aged 40–41 | Died of Black Death, without male heirs. |
| Simon IV | | c.1340? First son of Simon III and Hedwig of Schönberg | 1360 – 1414 | County of Kempenich | Unmarried | 1414 aged 73–74? | Sons of Simon III, ruled jointly. The death of the last one of them with no male descendants led to the annexation of the land to the Lords of Schöneck. |
| Theodoric V | | c.1340? Second son of Simon III and Hedwig of Schönberg | 1360 – 1378 | County of Kempenich | Unmarried | 1378 aged 37–38? | Sons of Simon III, ruled jointly. The death of the last one of them with no male descendants led to the annexation of the land to the Lords of Schöneck. |
| John | | c.1340? Third son of Simon III and Hedwig of Schönberg | 1360 – 1424 | County of Kempenich | Gertrude of Hückelhoven (d.1421) one child | 1424 aged 37–38? | Sons of Simon III, ruled jointly. The death of the last one of them with no male descendants led to the annexation of the land to the Lords of Schöneck. |
| Henry | | c.1340? Fourth son of Simon III and Hedwig of Schönberg | 1360 – 1388 | County of Kempenich | Elisabeth of Schönkeen no children | 1388 aged 47–48? | Sons of Simon III, ruled jointly. The death of the last one of them with no male descendants led to the annexation of the land to the Lords of Schöneck. |
| Salentin V | | c.1345 Son of Salentin IV and Catharina of Solms-Sponheim | 1364 – 30 November 1420 | County of Lower Isenburg | Adelaide of Isenburg-Arenfels 6 May 1371 ten children | 30 November 1420 aged 74–75 | |
| John II | | c.1330? Second son of Gerlach II and Kunigunde of Wertheim | April 1366 – 26 January 1406 | County of Limburg | Hildegard of Saarwerden (d.1419) two children | 26 January 1406 aged 75–76 | Originally went into clergy. However, after his brother's death with no heirs, and with the permission of Pope Urban V, John put aside the office of Canon of Trier Cathedral and took over the rule of Limburg. He left no male heirs. The land went to the Archbishopric of Trier. |
| Isenburg-Limburg was annexed to the Archbishopric of Trier ||||||||
| Eberhard | | 1356 Son of Philip I and Margaret of Katzenelnbogen | 22 March 1370 – 1399 | County of Grenzau | Matilda of the Mark (d.6 August 1406) 1371 five children | 1399 aged 42–43 | |
| Lysa | | c.1350? Daughter of Gerlach II and Demut of Roesberg | 14 August 1371 – 30 November 1403 | County of Arenfels | William I, Count of Isenburg-Braunsberg 11 November 1362 two children | 30 November 1403 aged 52–53? | |
| Arenfels was inherited by Braunsberg/Wied ||||||||
| John I | | 1325 Son of Henry I and Adelaide of Hanau | 1379 – 24 February 1395 | County of Büdingen | Sophia of Wertheim (d.1389) 1355 two children | 24 February 1395 aged 69–70 | |
| William II | | 1352 Son of William I and Agnes of Virneburg | 17 July 1383 – 1409 | County of Braunsberg (until 1388) County of Wied (from 1388) | Unmarried | c.1409 | Left no descendants. |
| John II | | 1360 Son of John I and Sophia of Wertheim | 24 February 1395 – 1408 | County of Büdingen | Margaret of Katzenelnbogen 1385 two children | 1408 aged 47–48 | |
| Philip II | | 1376 Son of Eberhard and Matilda of the Mark | 1399 – 1440 | County of Grenzau | Catharina of Lower Isenburg (d.15 July 1441) 17 January 1395 no children | 1440 aged 75–76 | His childless death determined that the county was inherited by his nephews from Nassau-Beilstein, sons of his elder sister Matilda. In 1460, through his other sister Maria, her descendants would recover this county to Isenburg property. |
| Annexed to the County of Nassau-Beilstein (1439), to the Archbishopric of Trier (1446) and the County of Lower Isenburg (1460) ||||||||
| Diether | | 1390 Son of John II and Margaret of Katzenelnbogen | 1408 – 20 November 1461 | County of Büdingen | Elisabeth of Solms-Braunfels 26 July 1409 eight children | 20 November 1461 aged 70–71 | |
| Gerlach | | c.1365 Son of William I and Lysa of Isenburg-Arenfels | 1409 – 1413 | County of Wied | Agnes of Isenburg-Büdingen 27 September 1376 four children | 1413 aged 47–48 | Half-brother of William II, ruled in Arenfels since 1403. |
| William III | | c.1380? First son of Gerlach and Agnes of Isenburg-Büdingen | 1413 – 22 October 1462 | County of Wied (at Wied and 1/2 Arenfels) | Margaret of Moers no children Philippa of Heinsberg (d.14 January 1464) 10 April 1402 no children | 22 October 1462 aged 81–82? | Sons of Gerlach, divided their inheritance. John left his inheritance to his daughter Anastasia, who married Dietrich IV, Lord of Runkel. After William's death, his part of the domain went to Dietrich IV, inheritor of the by then dead spouse's patrimony. |
| John II | | c.1380? Second son of Gerlach and Agnes of Isenburg-Büdingen | 1413 – 1454 | County of Wied (at Braunsberg and 1/2 Arenfels) | Agnes of Westerburg (d.1415) 1400 two children Kunigunde of Westerburg (d. 2 February 1428) 1415 no children Kunigunde of Saffenberg (d.1454) 1428 no children | 1454 aged 73–74? | Sons of Gerlach, divided their inheritance. John left his inheritance to his daughter Anastasia, who married Dietrich IV, Lord of Runkel. After William's death, his part of the domain went to Dietrich IV, inheritor of the by then dead spouse's patrimony. |
| Wied and 1/2 Arenfels annexed to the Runkel family ||||||||
| Salentin VI | | c.1380? Son of Salentin V and Adelaide of Isenburg-Arenfels | 30 November 1420 – 1458 | County of Lower Isenburg | Adelaide of Isenberg-Grenzau no children Maria of Isenberg-Grenzau ten children | 1458 aged 77–78? | |
| Hedwig | | c.1405? Daughter of John and Gertrude of Hückelhoven | 1424 – 1430 | County of Kempenich | Peter of Schöneck 1411 at least one child | c.1430 aged 24–25? | Heir of Kempenich, married the Lord of Schöneck, who eventually won the War of Succession that followed John's death in 1424. |
| Kempenich annexed to the Lordship of Schöneck (1424-1434), the Archbishopric of Trier (1434) and then to the County of Virneburg ||||||||
| Anastasia | | c.1410 Daughter of John II and Agnes of Westerburg | 1454 – 1460 | County of Wied (at Braunsberg and 1/2 Arenfels) | Theodoric IV, Lord of Runkel 1427 no children | 1460 aged 49–50 | Inherited her father's domains. After her death in 1460 the Runkel family inherited her part of the land, and the other would be inherited after her uncle William II's death. |
| Braunsberg and 1/2 Arenfels annexed to the Runkel family ||||||||
| Gerlach I | | c.1410? Son of Salentin VI and Maria of Isenberg-Grenzau | 1458 – 6 May 1488 | County of Lower Isenburg | Jutta of Eppenstein (d.1451) four children | 6 May 1488 aged 77–78? | |
| Louis II | | 1422 Son of Diether and Elisabeth of Solms-Braunfels | 20 November 1461 – 4 June 1511 | 4 June 1511 Büdingen aged 88–89 | County of Büdingen | Maria of Nassau-Wiesbaden-Idstein 1 December 1452 ten children | |
| Gerlach II | | c.1450 First son of Gerlach I and Jutta of Eppenstein | 6 May 1488 – 18 July 1502 | County of Lower Isenburg | Hildegard von Zirk (1430-1478) seven children | 18 July 1502 aged 51–52 | Sons of Gerlach II, ruled jointly. |
| James | | 1456 Third son of Gerlach I and Jutta of Eppenstein | 6 May 1488 – 17 January 1505 | County of Lower Isenburg | Unmarried | 17 January 1505 aged 48–49 | Sons of Gerlach II, ruled jointly. |
| Salentin VII | | c.1470 First son of Gerlach II and Hildegard von Zirk | 18 July 1502 – 24 September 1534 | County of Neumagen | Elisabeth of Hunolstein-Neumagen (1475-4 June 1538) nine children | 24 September 1534 aged 63–64 | Children of Gerlach II, divided their inheritance after their uncle's death in 1505. |
| Gerlach III | | c.1490 Second son of Gerlach II and Hildegard von Zirk | 18 July 1502 – 9 September 1530 | County of Grenzau | Anastasia of Moers (d.24 October 1557) 5 July 1494 eleven children | 9 September 1530 aged 39–40 | Children of Gerlach II, divided their inheritance after their uncle's death in 1505. |
| Philip I | | 20 March 1467 Büdingen First son of Louis II and Maria of Nassau-Wiesbaden-Idstein | 4 June 1511 – 22 February 1526 | County of Ronneburg | Amalia of Rieneck 19 November 1495 Büdingen six children | 22 February 1526 Büdingen aged 58 | Sons of Louis II, divided the county between them. |
| John III | | 1476 Büdingen Third son of Louis II and Maria of Nassau-Wiesbaden-Idstein | 4 June 1511 – 18 May 1533 | County of Birstein | Anna of Schwarzburg-Blankenburg 17 June 1516 Arnstadt seven children | 18 May 1533 Büdingen aged 56–57 | Sons of Louis II, divided the county between them. |
| Anton I | | 2 August 1501 Büdingen Son of Philip I and Amalia of Rieneck | 22 February 1526 – 25 October 1560 | County of Ronneburg | Elisabeth of Wied 19 October 1523 Wied sixteen children Katharina Gumpel (1530-18 September 1559) 16 February 1554 four children | 25 October 1560 Büdingen aged 59 | |
| Regency of Anastasia of Moers (1530-1535) | Regency of Anastasia of Moers (1530-1535) | Regency of Anastasia of Moers (1530-1535) | Regency of Anastasia of Moers (1530-1535) | Regency of Anastasia of Moers (1530-1535) | Regency of Anastasia of Moers (1530-1535) | Regency of Anastasia of Moers (1530-1535) | |
| Henry the Elder | | 5 January 1521 Son of Gerlach III and Anastasia of Moers | 9 September 1530 – 1553 | County of Grenzau | Margaret of Wertheim (d.25 March 1538) 2 September 1533 five children | 1553 aged 31–32 | |
| Reinhard | | 1518 Büdingen First son of John III and Anna of Schwarzburg-Blankenburg | 18 May 1533 – 28 February 1568 | County of Birstein | Elisabeth of Waldeck-Wildungen 1542 one child Margaret of Mansfeld (1520-1573) 4 May 1551 Rudolstadt no children | 28 February 1568 Offenbach am Main aged 49–50 | Sons of John III, ruled jointly. |
| Philip II | | 23 May 1526 Büdingen Third son of John III and Anna of Schwarzburg-Blankenburg | 18 May 1533 – 5 April 1596 | County of Birstein | Irmengard of Solms-Braunfels 31 October 1559 Birstein ten children | 5 April 1596 Birstein aged 69 | Sons of John III, ruled jointly. |
| Louis III | | 30 May 1529 Büdingen Fourth son of John III and Anna of Schwarzburg-Blankenburg | 18 May 1533 – 7 February 1588 | County of Birstein | Anna Sybilla of Schwarzburg (25 October 1540 – 3 August 1578) 24 June 1571 Arnstadt four children Maria of Hohnstein (1558-2 February 1586) 13 August 1581 Offenbach am Main two children | 7 February 1588 Offenbach am Main aged 58 | Sons of John III, ruled jointly. |
| Salentin VIII | | c.1520 Second son of Salentin VII and Elisabeth of Hunolstein-Neumagen | 24 September 1534 – 1544 | County of Neumagen | Unmarried | 1544 aged 43–44 | Sons of Salentin VII, ruled jointly. After their childless deaths, the county is inherited by their sister. |
| Henry | | c.1534 Third son of Salentin VII and Elisabeth of Hunolstein-Neumagen | 24 September 1534 – 13 February 1554 | County of Neumagen | Antonia Penelope van Brederode (d.30 June 1591) 4 September 1547 ten children | 13 February 1554 aged 53–54 | Sons of Salentin VII, ruled jointly. After their childless deaths, the county is inherited by their sister. |
| John Henry | | 1534 Second son of Henry and Margaret of Wertheim | 1553 – 15 November 1565 | County of Grenzau | Erica of Manderscheid-Schleiden (d.23 December 1587) 22 August 1563 Grenzau no children | 15 November 1565 aged 30–31 | |
| Johannetta | | c.1500 Daughter of Salentin VII and Elisabeth of Hunolstein-Neumagen | 13 February 1554 – 8 August 1563 | County of Neumagen | William I, Count of Sayn-Wittgenstein 1522 seven children | 8 August 1563 aged 53–54 | |
| Neumagen annexed to the County of Sayn ||||||||
| George | | 10 September 1528 Ronneburg Second son of Anton I and Elisabeth of Wied | 25 October 1560 – 29 June 1577 | Isenburg-Ronneburg (from 1566 in Ronneburg) | Barbara of Wertheim (1531-17 September 1600) 21 May 1552 no children | 29 June 1577 Wertheim aged 48 | Sons of Anton, divided their patrimony, Henry, the last surviving brother, reunited it, but left no descendants. After his death, Ronneburg was reabsorbed into Birstein. |
| Wolfgang | | 12 June 1533 Ronneburg Third son of Anton I and Elisabeth of Wied | 25 October 1560 – 20 December 1597 | Isenburg-Ronneburg (from 1566 in Kelsterbach) | Johanna of Hanau-Lichtenberg 26 October 1563 (annulled 1573) one child Ursula of Solms-Braunfels 16 December 1577 no children Ursula of Gleichen-Remda (d. September 1625) 19 September 1585 no children | 20 December 1597 Kelsterbach aged 64 | Sons of Anton, divided their patrimony, Henry, the last surviving brother, reunited it, but left no descendants. After his death, Ronneburg was reabsorbed into Birstein. |
| Henry | | 13 September 1537 Ronneburg Fifth son of Anton I and Elisabeth of Wied | 25 October 1560 – 31 May 1601 | Isenburg-Ronneburg (1566-1597 in Ronneburg; in the entire county from 1597) | Maria of Rappoltstein (5 July 1551 – 15 October 1571) 1569 no children Elisabeth of Gleichen-Tona (1554-19 July 1616) 1572 no children | 31 May 1601 Ronneburg aged 63 | Sons of Anton, divided their patrimony, Henry, the last surviving brother, reunited it, but left no descendants. After his death, Ronneburg was reabsorbed into Birstein. |
| Ronneburg was annexed to Birstein ||||||||
| Salentin IX | | 1532 First son of Henry and Margaret of Wertheim | 15 November 1565 – 19 March 1610 | County of Grenzau | Antonia Wilhelmina of Arenberg (1 March 1557 - 26 February 1626) 10 December 1577 two children | 19 March 1610 aged 77–78 | Originally Archbishop-Elector of Cologne, he abdicated of his post to inherit his childless brother's county. |
| Wolfgang Ernest I | | 29 December 1560 Birstein Son of Philip II and Irmengard of Solms-Braunfels | 5 April 1596 – 21 May 1633 | County of Birstein | Anna of Gleichen-Remda 26 September 1585 Birstein eight children Elisabeth of Nassau-Dillenburg 16 April 1603 Frankfurt am Main one child Juliana of Sayn-Wittgenstein 19 April 1616 four children Sabine von Saalfeld (d.1635) c.1630 (morganatic) no children | 21 May 1633 Birstein aged 72 | |
| Salentin X | | c.1580 First son of Salentin IX and Antonia Wilhelmina of Arenberg | 19 March 1610 – 5 December 1619 | County of Grenzau | Unmarried | 5 December 1619 aged 38–39 | Died childless. |
| Ernest | | 1584 Second son of Salentin IX and Antonia Wilhelmina of Arenberg | 5 December 1619 – 30 May 1664 | County of Grenzau | Caroline Ernestine of Arenberg (6 September 1606 – 12 September 1630) 1 September 1625 no children Maria Anna of Hohenzollern-Hechingen (1614 – 7 March 1670) 1636 Fürstenberg one child | 30 May 1664 Brussels aged 79–80 | Left no male descendants. |
| Grenzau divided between the Archbishopric of Trier, Archbishopric of Cologne and Abbots of Fulda ||||||||
| Wolfgang Henry | | 21 October 1588 Offenbach First son of Wolfgang Ernest I and Anna of Gleichen-Remda | 21 May 1633 – 27 February 1638 | County of Offenbach | Maria Magdalene of Nassau-Wiesbaden-Idstein 12 September 1609 Büdingen thirteen children | 27 February 1638 Frankfurt am Main aged 49 | Sons of Wolfgang Ernest I, divided their inheritance. William Otto didn't have descendants and his feud was briefly annexed to Offenbach, before it generates a new branch in 1685. |
| William Otto | | 6 November 1597 Birstein Fourth son of Wolfgang Ernest I and Anna of Gleichen-Remda | 21 May 1633 – 17 July 1667 | County of Birstein | Catharina Elisabeth of Hanau-Munzenberg (1 September 1607 – 24 September 1647) 7 November 1628 no children Anna Amalia of Nassau-Dillenburg 24 October 1648 Birstein no children | 17 July 1667 Birstein aged 69 | Sons of Wolfgang Ernest I, divided their inheritance. William Otto didn't have descendants and his feud was briefly annexed to Offenbach, before it generates a new branch in 1685. |
| Sons of Wolfgang Ernest I, divided their inheritance. William Otto didn't have descendants and his feud was briefly annexed to Offenbach, before it generates a new branch in 1685. |||||||
| John Ernest I | | 21 June 1625 Birstein Son of Wolfgang Ernest I and Juliana of Sayn-Wittgenstein | 21 May 1633 – 8 October 1673 | County of Büdingen | Maria Charlotte of Erbach-Erbach 15 June 1650 Wächtersbach twelve children | 8 October 1673 Büdingen aged 48 | Sons of Wolfgang Ernest I, divided their inheritance. William Otto didn't have descendants and his feud was briefly annexed to Offenbach, before it generates a new branch in 1685. |
| Isenburg-Birstein annexed to Isenburg-Offenbach ||||||||
| Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | Regency of Maria Magdalene of Nassau-Wiesbaden-Idstein (1638-1640) | |
| John Louis | | 14 February 1622 Birstein Son of Wolfgang Henry and Maria Magdalene of Nassau-Wiesbaden-Idstein | 27 February 1638 – 23 February 1685 | County of Offenbach | Maria Juliana of Hanau-Munzenberg (15 January 1617 – 28 October 1643) 7 October 1643 Hanau no children Louise of Nassau-Dillenburg 10 February 1646 Dillenburg eleven children Maria Juliana Blingen (d.1677) 27 January 1666 Hanau (morganatic) six children | 23 February 1685 Offenbach am Main aged 63 | |
| Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Regency of Maria Charlotte of Erbach-Erbach (1673-1691) | Sons of John Ernest I, ruled under their mother during their minority, and then divided the land once more. |
| John Casimir | | 10 July 1660 Wächtersbach Sixth son of John Ernest I and Maria Charlotte of Erbach-Erbach | 8 October 1673 – 23 September 1693 | County of Büdingen | Sophie Elisabeth of Isenburg-Offenbach 12 April c.1680 Offenbach am Main eight children | 23 September 1693 Culemborg aged 33 | Sons of John Ernest I, ruled under their mother during their minority, and then divided the land once more. |
| Ferdinand Maximilian I | | 3 January 1662 Büdingen Seventh son of John Ernest I and Maria Charlotte of Erbach-Erbach | 8 October 1673 – 14 March 1703 | County of Wächtersbach | Albertine Maria of Sayn-Wittgenstein-Berleburg (29 January 1663 – 29 November 1711) 1 July 1685 Berleburg fourteen children | 14 March 1703 Wächtersbach aged 41 | Sons of John Ernest I, ruled under their mother during their minority, and then divided the land once more. |
| George Albert | | 1 May 1664 Meerholz Eighth son of John Ernest I and Maria Charlotte of Erbach-Erbach | 8 October 1673 – 11 February 1724 | County of Meerholz | Amalia Henriette of Sayn-Wittgenstein-Berleburg 11 July 1691 Meerholz six children | 11 February 1724 Meerholz aged 59 | Sons of John Ernest I, ruled under their mother during their minority, and then divided the land once more. |
| Charles Augustus | | 27 January 1667 Büdingen Eighth son of John Ernest I and Maria Charlotte of Erbach-Erbach | 8 October 1673 – 16 March 1725 | County of Marienborn | Anna Belgica Florentina of Solms-Laubach (9 September 1663 – 21 April 1707) 5 May 1690 Laubach four children | 16 March 1725 Marienborn aged 59 | Sons of John Ernest I, ruled under their mother during their minority, and then divided the land once more. |
| Marienborn was annexed to Wächtersbach ||||||||
| John Philip | | 3 December 1655 Offenbach am Main Third son of John Louis and Louise of Nassau-Dillenburg | 23 February 1685 – 21 September 1718 | County of Offenbach | Charlotte Amalia of Palatinate-Zweibrücken-Landsberg (24 May 1653 – 9 August 1707)19 July 1678 no children Frederica Wilhelmina Charlotte of Sayn-Wittgenstein-Berleburg 22 July 1708 one child | 21 September 1718 Dreieich aged 63 | Sons of John Louis, redivided their inheritance. |
| William Maurice I | | 3 August 1657 Offenbach am Main Fourth son of John Louis and Louise of Nassau-Dillenburg | 23 February 1685 – 8 March 1711 | County of Birstein | Anna Amalia of Isenburg-Büdingen 3 November 1679 Birstein sixteen children Anna Ernestina Sofia von Kvernheim (1660-30 September 1708) 1700 no children Wilhelmina Elizabeth of Leiningen-Dagsburg-Falkenburg (13 April 1659 – 15 September 1733) 1709 Niederweisel no children | 8 March 1711 Birstein aged 54 | Sons of John Louis, redivided their inheritance. |
| Council of Regency (1693-1701) | Council of Regency (1693-1701) | Council of Regency (1693-1701) | Council of Regency (1693-1701) | Council of Regency (1693-1701) | Council of Regency (1693-1701) | Council of Regency (1693-1701) | Died childless. He was succeeded by his brother. |
| John Ernest II | | 3 April 1683 Büdingen Second son of John Casimir and Sophie Elisabeth of Isenburg-Offenbach | 23 September 1693 – 31 May 1708 | County of Büdingen | Unmarried | 31 May 1708 Büdingen aged 25 | Died childless. He was succeeded by his brother. |
| Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | Regency of Albertine Maria of Sayn-Wittgenstein-Berleburg (1703-1710) | |
| Ferdinand Maximilian II | | 12 January 1692 Wächtersbach Son of Ferdinand Maximilian I and Albertine Maria of Sayn-Wittgenstein-Berleburg | 14 March 1703 – 22 April 1755 | County of Wächtersbach | Albertine Ernestine of Isenburg-Büdingen (25 August 1692 – 11 June 1724) 28 May 1713 Büdingen nine children Ernestine Wilhelmine of Stolberg-Gedern 7 December 1725 Wächtersbach eight children | 22 April 1755 Wächtersbach aged 63 | |
| Ernest Casimir I | | 12 May 1687 Büdingen Fourth son of John Casimir and Sophie Elisabeth of Isenburg-Offenbach | 31 May 1708 – 15 October 1749 | County of Büdingen | Christine Eleonore of Stolberg-Gedern 8 August 1708 Gedern eight children | 15 October 1749 Büdingen aged 62 | Brother of John Ernest II. |
| Wolfgang Ernest I | | 5 April 1666 Birstein Third son of William Maurice I and Anna Amalia of Isenburg-Büdingen | 8 March 1711 – 15 April 1754 | County of Birstein | Friederike Elisabeth of Leiningen-Dagsburg-Hartenburg (16 January 1681 – 11 January 1717) 27 November 1707 Weilburg seven children Elisabeth Charlotte of Isenburg-Marienborn (7 November 1695 – 23 September 1723) 27 January 1719 Marienborn two children Charlotte Amalia of Isenburg-Meerholz 22 May 1725 six children | 15 April 1754 Birstein aged 88 | Sons of William Maurice I, divided the land between them. |
| William Maurice II | | 23 July 1688 Birstein Fourth son of William Maurice I and Anna Amalia of Isenburg-Büdingen | 8 March 1711 – 7 March 1772 | County of Philippseich | Amalia Louisa von Donna-Lauk-Reichertswalde (27 February 1763 – 20 April 1800) 3 January 1712 Birstein three children Philippine Louise of Stolberg-Gedern 2 April 1725 Gedern twelve children | 7 March 1772 Dreieich aged 84 | Sons of William Maurice I, divided the land between them. |
| Charles | | 27 November 1700 Son of George Albert and Amalia Henriette of Sayn-Wittgenstein-Berleburg | 11 February 1724 – 14 March 1774 | County of Meerholz | Elisabeth Friederike Juliana of Solms-Rodelheim-Assenheim (23 September 1703 – 1 June 1762) 11 July 1691 Meerholz twelve children | 14 March 1774 aged 73 | |
| Louis Casimir | | 25 August 1710 Büdingen Son of Ernest Casimir I and Christine Eleonore of Stolberg-Gedern | 15 October 1749 – 15 December 1775 | County of Büdingen | Auguste Friederike of Stolberg-Wernigerode (4 September 1743 – 9 January 1783) 24 September 1768 Christinenhof eight children | 15 December 1775 Büdingen aged 65 | Left no surviving heirs. He was succeeded by his nephew. |
| Wolfgang Ernest II | | 17 November 1735 Birstein Son of William Emich Christoph of Isenburg-Birstein and Amalia Belgica of Isenburg-Marienborn | 15 April 1754 – 3 February 1803 | County of Birstein | Sophie Charlotte Ernestina of Anhalt-Bernburg-Schaumburg-Hoym 20 September 1760 Schaumburg Castle seven children Ernestine Esperance Victoria of Reuss-Greiz (20 January 1756 – 2 December 1819) 20 August 1783 no children | 3 February 1803 Offenbach am Main aged 68 | Grandson of Wolfgang Ernest I. |
| Ferdinand Casimir I | | 19 January 1716 Wächtersbach First son of Ferdinand Maximilian II and Albertine Ernestine of Isenburg-Büdingen | 22 April 1755 – 16 September 1778 | County of Wächtersbach | Augusta Caroline of Isenburg-Büdingen (15 July 1722 – 30 November 1758) 7 July 1750 Büdingen two children | 16 September 1778 Assenheim aged 62 | |
| Christian Charles | | 28 June 1732 Dreieich Son of William Maurice II and Philippine Louise of Stolberg-Gedern | 7 March 1772 – 26 March 1779 | County of Philippseich | Constance Sophie of Sayn-Wittgenstein-Berleburg 13 June 1762 Dreieich seven children | 26 March 1779 Dreieich aged 46 | |
| John Frederick William | | 2 May 1729 Meerholz Son of Charles and Elisabeth Friederike Juliana of Solms-Rodelheim-Assenheim | 14 March 1774 – 4 May 1802 | County of Meerholz | Caroline of Salm (20 April 1734 – 11 May 1791) 11 June 1762 Grumbach eight children | 4 May 1802 Meerholz aged 73 | |
| Ernest Casimir II | | 25 February 1757 Büdingen Son of Ernest Dietrich of Isenburg-Büdingen and Dorothea Wilhelmina of Isenburg-Birstein | 15 December 1775 – 25 February 1801 | County of Büdingen | Eleonore of Bentheim-Steinfurt (26 April 1754 – 18 February 1827) 25 July 1779 Burgsteinfurt eight children | 25 February 1801 Büdingen aged 44 | Nephew of Louis Casimir. |
| Ferdinand Casimir II | | 17 October 1752 Wächtersbach Son of Ferdinand Casimir I and Augusta Caroline of Isenburg-Büdingen | 16 September 1778 – 1 December 1780 | County of Wächtersbach | Auguste Louise Clementine Hedwig of Bentheim-Steinfurt (23 September 1755 – 15 November 1798) 29 April 1755 Siegen no children | 1 December 1780 Wächtersbach aged 28 | Left no heirs. The county passed to his uncle. |
| Council of Regency (1779-1781) | Council of Regency (1779-1781) | Council of Regency (1779-1781) | Council of Regency (1779-1781) | Council of Regency (1779-1781) | Council of Regency (1779-1781) | Council of Regency (1779-1781) | Left no heirs. |
| Charles William Ernest | | 20 October 1767 Dreieich Second son of Christian Charles and Constance Sophie of Sayn-Wittgenstein-Berleburg | 26 March 1779 – 30 January 1781 | County of Philippseich | Unmarried | 30 January 1781 Dreieich aged 14 | Left no heirs. |
| Albert Augustus | | 14 April 1717 Wächtersbach Second son of Ferdinand Maximilian II and Albertine Ernestine of Isenburg-Büdingen | 1 December 1780 – 25 November 1782 | County of Wächtersbach | Sophia Dorothea Wilhelmina van Rehren (15 June 1706 – 23 October 1758) 22 April 1756 Almelo no children Charlotte of Hesse-Philippsthal-Barchfeld 9 June 1765 Meiningen no children | 25 November 1782 Wächtersbach aged 65 | Didn't have children. He was succeeded by his brother. |
| Council of Regency (1781-1788) | Council of Regency (1781-1788) | Council of Regency (1781-1788) | Council of Regency (1781-1788) | Council of Regency (1781-1788) | Council of Regency (1781-1788) | Council of Regency (1781-1788) | Brother of Charles William Ernest. In 1806, by German mediatisation, all Isenburg lands were absorbed into Isenburg-Birstein. |
| Henry Ferdinand | | 15 October 1770 Dreieich Third son of Christian Charles and Constance Sophie of Sayn-Wittgenstein-Berleburg | 30 January 1781 – 12 July 1806 | County of Philippseich | Amalia Isabella Sidonia of Bentheim-Tecklenburg 13 July 1789 Lemgo nine children | 27 December 1838 Wächtersbach aged 68 | Brother of Charles William Ernest. In 1806, by German mediatisation, all Isenburg lands were absorbed into Isenburg-Birstein. |
| Isenburg-Philippseich absorbed into Isenburg-Birstein ||||||||
| William Reinhard | | 5 May 1719 Wächtersbach Third son of Ferdinand Maximilian II and Albertine Ernestine of Isenburg-Büdingen | 25 November 1782 – 5 August 1785 | County of Wächtersbach | Auguste Louise Clementine Hedwig of Bentheim-Steinfurt (23 September 1755 – 15 November 1798) 20 February 1784 Wächtersbach no children | 5 August 1785 Wächtersbach aged 66 | Brother of Ferdinand Casimir I and Albert Augustus. Married his sister-in-law, but didn't have heirs. |
| Adolph I | | 20 August 1722 Wächtersbach Fourth son of Ferdinand Maximilian II and Albertine Ernestine of Isenburg-Büdingen | 5 August 1785 – 19 April 1798 | County of Wächtersbach | Unmarried | 19 April 1798 Wächtersbach aged 75 | Brother of Ferdinand Casimir, Albert Augustus and William Reinhard. He also didn't have heirs. |
| Louis Maximilian I | | 28 August 1741 Wächtersbach Son of Ferdinand Maximilian II and Ernestine Wilhelmine of Stolberg-Gedern | 19 April 1798 – 23 June 1805 | County of Wächtersbach | Auguste of Sayn-Wittgenstein-Hohenstein (27 February 1763 – 20 April 1800) 26 April 1789 Wittgenstein four children | 23 June 1805 Wächtersbach aged 64 | Last son of Ferdinand Maximilian II. |
| Ernest Casimir III | | 20 January 1781 Büdingen Son of Ernest Casimir II and Eleonore of Bentheim-Steinfurt | 25 February 1801 – 12 July 1806 | County of Büdingen | Ferdinande of Erbach-Schönberg (23 July 1784 – 24 September 1848) 10 May 1804 Zwingenberg eight children | 1 December 1852 Büdingen aged 71 | In 1806, by German mediatisation, all Isenburg lands were absorbed into Isenburg-Birstein. |
| Isenburg-Büdingen absorbed into Isenburg-Birstein ||||||||
| Charles William Louis | | 7 May 1763 Meerholz Son of John Frederick William and Caroline of Salm | 4 May 1802 – 12 July 1806 | County of Meerholz | Caroline of Sayn-Wittgenstein-Hohenstein (13 September 1764 – 28 April 1833) 29 March 1785 Wittgenstein six children | 17 April 1832 Meerholz aged 68 | In 1806, by German mediatisation, all Isenburg lands were absorbed into Isenburg-Birstein. |
| Meerholz absorbed into Birstein ||||||||
| Regency of Charles, Count of Isenburg-Birstein (1805-1806) | Regency of Charles, Count of Isenburg-Birstein (1805-1806) | Regency of Charles, Count of Isenburg-Birstein (1805-1806) | Regency of Charles, Count of Isenburg-Birstein (1805-1806) | Regency of Charles, Count of Isenburg-Birstein (1805-1806) | Regency of Charles, Count of Isenburg-Birstein (1805-1806) | Regency of Charles, Count of Isenburg-Birstein (1805-1806) | In 1806, by German mediatisation, all Isenburg lands were absorbed into Isenburg-Birstein. |
| Louis Maximilian II | | 21 May 1791 Wächtersbach Son of Louis Maximilian I and Auguste of Sayn-Wittgenstein-Hohenstein | 23 June 1805 – 12 July 1806 | County of Wächtersbach | Unmarried | 25 February 1821 Wächtersbach aged 29 | In 1806, by German mediatisation, all Isenburg lands were absorbed into Isenburg-Birstein. |
| Wachtersbach absorbed into Birstein ||||||||
| Charles | | 29 June 1766 Birstein Son of Wolfgang Ernest II and Sophie Charlotte Ernestina of Anhalt-Bernburg-Schaumburg-Hoym | 3 February 1803 – 12 July 1806 | Principality of Birstein | Charlotte Auguste of Erbach-Erbach 16 September 1795 Erbach six children | 21 March 1820 Birstein aged 53 | In 1806, in the advent of the German mediatization, his county was chosen as the one to which all the others were absorbed to. He was then raised as Prince of Isenburg. However, in 1815, his own Principality was also absorbed, firstly to Austria, and then to the Electorate of Hesse. |
| Charles | | 29 June 1766 Birstein Son of Wolfgang Ernest II and Sophie Charlotte Ernestina of Anhalt-Bernburg-Schaumburg-Hoym | 12 July 1806 – 8 June 1815 | Principality of Isenburg | Charlotte Auguste of Erbach-Erbach 16 September 1795 Erbach six children | 21 March 1820 Birstein aged 53 | In 1806, in the advent of the German mediatization, his county was chosen as the one to which all the others were absorbed to. He was then raised as Prince of Isenburg. However, in 1815, his own Principality was also absorbed, firstly to Austria, and then to the Electorate of Hesse. |
| Isenburg was annexed to Austria (1815-16) and to the Electorate of Hesse (from 1816) ||||||||

## Post-1815 lines of succession
### Mediatized line of Birstein (1815)

* Charles, 1st Prince 1803-1820 (1766-1820)
** Wolfgang Ernst, 2nd Prince 1820-1866 (1798-1866)
** Prince Victor (1802-1843)
*** Karl, 3rd Prince 1866-1899 (1838-1899)
**** Prince Leopold (1866-1933) -renounced his rights in 1898
**** Franz Joseph, 4th Prince 1899-1939 (1869-1939)
***** Franz Ferdinand, 5th Prince 1939-1956 (1901-1956)
****** Franz Alexander, 6th Prince 1956–2018 (1943-2018)
******* Alexander, 7th Prince 2018–present (1969) ∞ Sarah Lorenz
******** Princess Alix (2015)
******** Princess Zita (2017)
******** Franz Salvator, Hereditary Prince (2019)
******* Princess Katharina (1971) ∞ Archduke Martin of Austria-Este
******* Princess Isabelle (1973) ∞ Carl, Prince of Wied
******* Frederick, Feudal Prince 2018–present (1974)
******* Princess Sophie (1978) ∞ Georg Friedrich, Prince of Prussia
******* Prince Viktor (1979) ∞ Jungeun Anes Lee
******** Princess Amalia (2016)
******** Princess Victoria (2018)

### Mediatized line of Büdingen (1806)

* Ernest Casimir III (1806-1848), in 1840 he was raised to Prince.
* Ernest Casimir IV (1848-1861)
* Bruno (1861-1906)
* Wolfgang (1906-1920)
* Alfred (1920-1922)
* Karl (1922-1941)
* Otto Friedrich (1904-1990), from the Ysenburg-Büdingen-Wächtersbach branch, adopted by Karl in 1936
* Wolfgang-Ernst, 8th Prince 1990- (b.1936) ∞ Leonille Princess of Sayn-Wittgenstein-Berleburg
** Hereditary Prince Casimir-Alexander (b.1967)
*** Prince Tristan Alexander (b.2014)
** Prince Maximilian (b.1969)
*** Prince Tassilo-Alexander (b.2006)

## Notable members of the family

* Imagina of Isenburg-Limburg, c. 1255 – 29 September 1313?, Queen consort of Adolf of Nassau, king of Germany
* Diether von Isenburg, c. 1412 – 1482, Elector and Archbishop of Mainz
* Anna of Isenburg-Büdingen, 1460 – 1522
* John of Isenburg-Grenzau, Archbishop-Elector of Trier from 1547 until 1556
* Salentin IX of Isenburg-Grenzau, c. 1532–1610, Archbishop-Elector of Cologne, Bishop of Paderborn
* Ernst Casimir II, 2nd Prince of Ysenburg and Büdingen, 1806-1861
* Bruno, 3rd Prince of Ysenburg and Büdingen, 1837-1906
* Princess Sophie Johanna Maria of Isenburg (born 1978), wife of Georg Friedrich, Prince of Prussia