Gerard I, Count of Guelders
Gerard I of Guelders (c. 1060 – 8 March 1129) was Count of Guelders (Gelre in Dutch).
He was the son of Theodoric of Wassenberg.
He may have been married to Clementia of Aquitaine, although that proposed marriage seems to be based on a falsified document.
It is also possible that he married an unnamed daughter of William I, Count of Burgundy.
Gerard had three children:
Otto II, Count of Duras
Count Otto of Duras( d. 1147) was a Count of Duras, and" advocatus" of the Abbey of St Truiden.
Duras and St Truiden are in the modern province of Belgian Limburg.
His parents were Count Giselbert of Duras and his wife Gertrud.
Otto married Berthe of Valenciennes, daughter of Yolande of Guelders, daughter of Gerard I, Count of Guelders.
Yolande was first married to Baldwin III, Count of Hainaut, and was mother to Baldwin IV, Count of Hainaut.
Yolande was granddaughter of Albert III, Count of Namur, a family with strong relations with Otto ’s father.
Otto and Berthe are thought to have had one child who survived to adulthood, Otto's successor:
In fact, the relationship with Countess Juliane depends upon the meaning of the Latin word" gener", used in one document to describe the relationship between Otto and Juliane's husband Count Godfried.
This could mean" son- in- law" or" brother- in- law".
Wolters for example identified Juliane as Otto's sister, but this seems unlikely given the succession of the Counts of Duras.
Juliane and Godfried had five children, the eldest of which was Gilles, Count of Montaigu, Duras, and Clermont, who married Lauretta, daughter of Louis I, Count of Loon.
Their third son Conan was also Count of Duras.
None of Juliane's sons had male heirs, and the family inheritance split up after their deaths.
Gerard II, Count of Guelders
Gerard II was Count of Guelders from March 1129 until his death on October 24, 1131.
He was the son of Gerard I, Count of Guelders.
Around 1116, Gerard married Ermgard of Zutphen, daughter of Otto II, Count of Zutphen and Judith of Arnstein.
They had two children:
Henry I, Count of Guelders
Henry I, Count of Guelders( 1117–1182) was Count of Guelders from 1131 until 1182.
He was a son of Gerard II of Guelders and Ermgard of Zutphen.
In 1138 Hendrik inherited the County of Zutphen from his mother.
Hendrik was under tremendous pressure from the Bishopric of Utrecht and the County of Holland, and was forced by Holland to negotiate a treaty with the city of Utrecht; this led to a problematic relation with the Bishop of Utrecht.
In 1135 Hendrik married Agnes of Arnstein, daughter of count Louis III of Arnstein.
Their daughter Adelaide married Gérard II, Count of Looz.
Hendrik died in 1182 and was succeeded by his son Otto I of Guelders.
He is buried at Kloosterkamp, probably the prestigious Cistercian abbey of Kloster Kamp.
Reginald III, Duke of Guelders
Reginald III of Guelders( or" Renaud", known as" The Fat")( 13 May 1333 – 4 December 1371) was Duke of Guelders and Count of Zutphen from 1343 to 1361, and again in 1371.
He was the son of Reginald II of Guelders and of Eleanor of Woodstock, daughter of Edward II of England.
With the death of his father in 1343, his mother held the regency until 1344.
From 1350, his brother Edward asserted his rights and a quarrel of succession broke out between the two brothers until 1361.
Reginald was overcome in Tiel and was imprisoned in the castle of Nijenbeek.
There he became so large that he could not have left, even if the door had remained open—hence his appellation" The Fat".
Edward died on 24 August 1371, having been mortally wounded in the Battle of Baesweiler, and Reginald was released( according to the legend, the walls had to be cut away so he could leave); he held the ducal throne for only a short period, dying a few months later.
He was buried at Graefenthal Abbey.
As he did not have a legitimate child, the succession passed to his sisters: Mathilde( also, Machteld), who was married to John II, Count of Blois, and Maria, wife of William II of Jülich and mother to William I of Guelders and Jülich, on whose behalf she claimed the throne of Guelders.
The sisters and their respective followers( the" Heeckerens", from the party led by families of Van Heeckeren and their relatives, the Van Rechterens, supported Mathilde, while the faction known as the" Bronkhorsters" followed Maria) fought for the duchy of Guelders in the War of the Succession of Guelders.
Reginald II, Duke of Guelders
Reginald II of Guelders, called" the Black"( c. 1295 – 12 October 1343), was Count of Guelders, and from 1339 onwards Duke of Guelders, and Zutphen, in the Low Countries, from 1326 to 1343.
He was the son of Reginald I of Guelders and Marguerite of Flanders.
Gerard, Count of Rieneck
Gerard( died 1216), Count of Rieneck, son of Gerard, Count of Loon, and Adelaide of Gelderland, daughter of Henry I, Count of Guelders, and Agnes of Arnstein, daughter of Louis III of Arnstein.
Virtually nothing is known about his life other than his children who succeeded their uncles as Counts of Looz.
Gerard married Cunegonde von Zimmern, daughter of Sibodo III, Count of Zimmern.
Gerard and Cunegonde had five children: Gerard was succeeded as Count of Rieneck by his brother Arnold.
Clementia of Aquitaine
Clémence d'Aquitaine (1060 – 4 January 1142) was a daughter of Pierre-Guillaume VII, duke of Aquitaine, and his wife Ermesinde.
She married firstly around 1075 to Conrad I of Luxembourg (
1040 † 1086), count of Luxembourg, and had:
Widowed, she remarried to Gerard I († 1129), count of Wassenberg and of Guelders.
This count married twice and had two children, neither of whose mothers has been identified.
These two children, perhaps born to Clémence, were :
Otto I, Count of Guelders
Otto I of Guelders( 1150 – 1207) was a Count of Guelders and Zutphen from 1182 until his death in 1207.
He was a son of Duke Hendrik of Guelders and Agnes of Arnstein.
He married Richardis of Bavaria in 1184.
Richardis was a daughter of Otto I Wittelsbach, Duke of Bavaria.
Otto II, Count of Guelders
Otto II, Count of Guelders( Dutch: Otto II, Graaf van Gelre) was a nobleman from the 13th century.
He was the son of Gerard III, Count of Guelders and Margaretha of Brabant.

Question: What is the place of birth of Gerard I, Count Of Guelders's wife?
Answer: Luxembourg