Notes:

Otto III (died 28 September 1057), called the White and known as Otto of Schweinfurt, was the margrave of the Nordgau (1024-1031) and duke of Swabia (1048-1057). He was the son of Henry of Schweinfurt, margrave of the Nordgau, and Gerberga of Henneberg. He was one of the most powerful East Franconian princes by inheritance: having extensive land in the Radenzgau and Schweinfurt. In 1014, he first appears as count of Lower Altmühl (or Kelsgau) and, in 1024, he inherits his father's march. In 1034, he became count of the Lower Naab. From then on to his appointment to Swabia, he takes part in many imperial expeditions into Bohemia, Hungary, and Poland.

At Ulm in January 1048, the Emperor Henry III appointed him duke of Swabia after a brief vacancy following the death of Otto II. He was loyal to Henry. He was engaged to marry Matilda, daughter of Boleslaus I of Poland, in 1035, but this was put off in favour of a marriage to Ermengard, a daughter of Ulric Manfred, Margrave of Turin, as part of Henry's Italian plans. He was otherwise inactive and died after nine years rule and was buried in Schweinfurt.

Family

By his marriage to Ermengard (died 29 April 1078), he had:

Bertha or Alberada (died 1 April 1103), married firstly Herman II, Count of Kastl, and married secondly Frederick, Count of Kastl
Gisela, inherited Kulmbach and Plassenburg, married Berthold III, Count of Andechs
Judith (died 1104), married firstly Conrad I, Duke of Bavaria, and secondly Botho, Count of Pottenstein
Eilika, abbess of Niedermünster
Beatrice (1040-1140), inherited Schweinfut, married Henry II, Count of Hildrizhausen and Margrave of the Nordgau

Otto — Ermengard. Ermengard (daughter of Ulric Manfred, II of Turin and Bertha, of the Obertenghi) died 28 Jan 1077/78. [Group Sheet]

1. Judith of Schweinfurt

Notes:

Henry of Schweinfurt (de Suinvorde; c. 970 - 18 September 1017) was the Margrave of the Nordgau from 994 until 1004. He was called the "glory of eastern Franconia" by his own cousin, the chronicler Thietmar of Merseburg.

Henry was the son of Berthold and Eilika (Eiliswintha or Eila) of Walbeck. His father's parentage is not known with certainty, but he may have been a son of Arnulf, Duke of Bavaria. Henry was Bavarian, whoever his grandfather.

Henry held a succession of countships after his father's death in 980. He was appointed marchio, like his father, of the Bavarian Nordgau in 994. In 1003, he revolted against Henry II of Germany claiming that he had been promised the Duchy of Bavaria in return for his support. The king said that the Bavarians had a right to elect their own duke. Henry allied with Boleslaus I of Poland and Boleslaus III of Bohemia. Nevertheless, his rebellion was quashed and he himself was briefly captive. The king established the Diocese of Bamberg to prevent any further uprisings in the region. The new diocese took over the secular authority of the margrave in the region of the Bavarian Nordgau.

Finally, it was only the joint persuasion of both his saecular and ecclesiastical overlords, Bernard I, Duke of Saxony, and Tagino, Archbishop of Magdeburg, that reconciled him to Henry in 1004. Henry of Schweinfurt did subsequently gain new and old countships before his death in 1017. He was buried at Schweinfurt.

Family

Henry married a woman named Gerberga, the daughter of an Otto whose identity is disputed. They had three sons and two daughters:

Otto, who later became Duke of Swabia
Eilika or Eilica, married Bernard II, Duke of Saxony
Judith of Schweinfurt (died 2 August 1058), married Bretislaus I of Bohemia
Burchard II, Bishop of Halberstadt, chancellor of the Emperor Conrad II
Henry, a count in the Nordgau

Henry — Gerberga. [Group Sheet]

Berthold — Eilika of Walbeck. [Group Sheet]