Rudolf II, Margrave of the Nordmark
Rudolf II( died 14 March 1144), Margrave of the Nordmark, and Count of Stade, Dithmarschen and Freckleben, son of Rudolf I, Margrave of the Nordmark, and Richardis, daughter of Hermann von Sponheim, Burgrave of Magdeburg.
Rudolf, the traditional heir to the margraviate assumed the title upon the death of his predecessor Conrad von Plötzkau.
A chronicle of the 15th century reported that Rudolf resided in Burg, Dithmarschen( Bökelnburg).
He ruled with a heavy hand and demanded his grain tithe even after several years of drought.
The Dithmarscher farmers used a ruse to get rid of their unpopular regent.
Hidden in sacks of corn were weapons.
As agreed, they opened the bags at the sound of the battle cry" Röhret de Hann, snidet de sac spell!"
( Shall ye touch hands, cuts the bag volumes).
They set the castle on fire, killed the count along with his wife, and so won their freedom.
This event is still recounted today in performances at the castle.
Rudolf was married to Elisabeth, daughter of Leopold I the Strong, Margrave of Styria.
No children are recorded of this union.
With the death of Rudolf, the male line of the Margraves of the Nordmark died out.
After the death of Rudolf, his brother Hartwig transferred his inheritance to the Archbishopric of Bremen in return for a regrant of a life interest, presumably to obtain a powerful protector against the aggression of Henry the Lion.
The move was ineffective, as Henry took possession of the lands and captured both Hartwig and the archbishop Adelbero, releasing them only after they agreed to recognize his claim.
Rudolf ’s successor as Margrave of the Nordmark was Albert the Bear.
Upon Rudolf's death, his brother Hartwig succeeded him as Count of Stade.
Conrad von Plötzkau, Margrave of the Nordmark
Conrad( died 1132), Margrave of the Nordmark and Count of Plötzkau, son of Helperich, Margrave of the Nordmark, and Adele, daughter of Kuno of Northeim and Kunigunde of Weimar- Orlamünde.
Conrad, called the Saxon flower, was born in Monza, Italy.
Conrad became Margrave of Nordmark upon the death of Udo IV, who died without a male heir.
At this point in time, the position of margrave had no real power.
Nevertheless, Conrad fought with Emperor Lothair II in his Italian campaign( Italienkriegszug) of 1132, and, on 25 December 1132, he was struck by an arrow in a battle with the Normans.
He died several days later and was buried in the Hecklingen Monastery.
Conrad was succeeded by the traditional heir to the margraviate, Rudolf II, son of Rudolf I.
William, Margrave of the Nordmark
William( died 10 September 1056) was the Margrave of the Nordmark from 1051 until his death.
He was the eldest son and successor of the Margrave Bernard by a daughter of Vladimir the Great.
He died fighting the Slavs in the Battle of Pritzlawa.
Upon his death, he was succeeded by his half- brother Otto as Margrave of the Nordmark.
Agnes of Baden, Countess of Holstein-Rendsburg
Agnes of Baden( 25 March 1408 – January 1473), was a German noblewoman member of the House of Zähringen and by marriage Countess of Holstein- Rendsburg.
She was a daughter of Bernard I, Margrave of Baden by his second wife Anna of Oettingen.
Henry II, Margrave of the Nordmark
Henry II( 1102 – 4 December 1128), Margrave of the Nordmark, also Count of Stade( as Henry IV), son of Lothair Udo III, Margrave of the Nordmark, and Irmgard, daughter of Dietrich, Count of Plötzkau, and Mathilde von Walbeck.
Henry assumed the title of Margrave of the Nordmark in 1114 from Helperich of Plötzkau, who was appointed margrave until Henry came of age.
The previous margrave in this dynasty was Henry ’s uncle Rudolf I, who was also his guardian.
Rudolf was deposed by Emperor Henry V because of conspiracy against the crown, and was replaced by Helperich as an interim measure.
Henry assumed the titles of Count of Stade and Margrave of the Nordmark in 1114.
Henry was married to Adelaide of Ballenstedt, a daughter of Otto, Count of Ballenstedt, and Eilika of Saxony.
Adelaide was therefore the sister of Albert the Bear.
There are no known children as a result of this union.
Henry was succeeded as margrave by the son of Helperich, Conrad of Plötzkau.
Otto, Margrave of the Nordmark
Otto( died 26 June 1057) was illegitimate son of Bernard, Margrave of the Nordmark, and a Slav mistress whose name is unknown.
He took the title" march" and claimed the Northern March following the death in battle of his half- brother William on 10 September 1056.
He was opposed, however, by Lothair Udo I and killed in battle near Hausneindorf the next summer.
Helperich von Plötzkau, Margrave of the Nordmark
Helperich( Helferich)( d. 1118), Count of Plötzkau and Walbeck, and Margrave of the Nordmark, son of Dietrich, Count of Plötzkau, and Mathilde von Walbeck, daughter of Conrad, Count of Walbeck, and Adelheid of Bavaria.
The count's sister Irmgard was married to Lothair Udo III, Margrave of the Nordmark, and was the mother of Helperich's successor in ruling the margraviate, Henry II.
Helperich inherited the title Count of Plötzkau upon his father ’s death and the title Count of Walbeck from his mother, although this title was mostly ceremonial at this point.
In 1112, Emperor Henry V deposed Rudolf I as Margrave of the Nordmark because of conspiracy against the crown in his alliance with Lothair of Supplinburg, then Duke of Saxony( and later Holy Roman Emperor).
The margraviate was given to Helperich as an interim measure until Henry II, nephew of Rudolf and heir to the title, was of age.
In 1106, Helperich married Adele, daughter of Kuno of Northeim and Kunigunde of Weimar- Orlamünde, widow of Dietrich III, Count of Katlenburg.
Helperich and Adele had four children: Halperich died in 1118 and was buried at the Hecklingen Monastery.
Upon his death, he was succeeded as Count of Plötzkau by his son Bernhard.
Henry II assumed the role of Margrave of the Nordmark in 1114.
Dietrich of Haldensleben, Margrave of the Nordmark
Dietrich (Theoderich, Theodoric) of Haldensleben (died 25 August 985) was a Saxon count in the Schwabengau, later also in the Nordthüringgau and the Derlingau, who was the first Margrave of the Northern March from 965 until the Great Slav Rising of 983.
He also bore the title of a "dux" (duke) in contemporary sources.
Lothair Udo III, Margrave of the Nordmark
Lothair Udo III( 1070- 1106), Margrave of the Nordmark and Count of Stade( as Lothair Udo IV), son of Lothair Udo II, Margrave of the Nordmark, and Oda of Werl, daughter of Herman III, Count of Werl, and Richenza of Swabia.
Brother of his predecessor Henry I the Long. Lothair Udo was betrothed to Eilika of Saxony, daughter of Magnus, Duke of Saxony, and Sophia of Hungary.
However, his attention was diverted to the House of Helperich, towards Count Helperich's enticing sister" Ermengardam".
He married this woman, the count's sister Irmgard, daughter of Dietrich, Count of Plötzkau, and Mathilde von Walbeck, daughter of Conrad, Count of Walbeck.
Eilika moved on and married
Otto the Rich, Count of Ballenstedt, and was mother to Albert the Bear, the last Margrave of the Nordmark and first Margrave of Brandenburg.
This provides an interesting twist in the history of the county of Stade.
Lothair Udo and Irmgard had four children:
Lothair Udo was succeeded by his brother Rudolf as margrave and count upon his death.
Bernard, Margrave of the Nordmark
Bernard (or Bernhard) (died 1051) was the Margrave of the Nordmark from 1009 until his death.
He was the son of Dietrich of Haldensleben and a rival of the counts of Walbeck, one of whom
, Werner, he succeeded in the march following his deposition.
In 1016–1017, Bernard feuded with Gero, Archbishop of Magdeburg, and consequently with the Emperor Henry II over the ambitions of the Magdeburger church.
The Emperor intervened and forced Bernard to pay Gero 500 lbs of silver in compensation for the assault his men had made on the city of Magdeburg.
Bernard was treated as an equal of his legal lord, the Duke of Saxony, then Bernard II, in a 1028 letter of the Emperor Conrad II concerning the slaves of the church of Verden, which was located in the provinces "to whom we [Conrad] have committed [to the Bernards] the rule."
He married a daughter of Vladimir
the Great, Grand Prince of Kiev.
He was succeeded as margrave by his eldest son William, in 1051.
His second son, Conrad, succeeded to Haldensleben.
He also left daughters, Theutberga, Oda, and perhaps Othelindis, wife of Dirk III, Count of Holland.
His illegitimate son by a Slav mistress, Otto, tried to succeed his brother, but was defeated and killed in battle.

Question: What is the date of death of Bernard, Margrave Of The Nordmark's father?
Answer: 25 August 985