Otto-William, Duke of Burgundy
| Otto-William, Count of Burgundy | |
|---|---|
| Spouse(s) |
Ermentrude of Roucy Adelaide |
| Noble family | Ivrea |
| Father | Adalbert of Ivrea |
| Mother | Gerberga of Mâcon |
| Born | c. 958 |
| Died | 21 September 1026 |
Otto-William (French: Otte-Guillaume; German: Otto Wilhelm; 955/62 – 21 September 1026 AD), was Count of Mâcon, Count of Nevers, and the Count of Burgundy.
Otto-William of Mâcon was born in 958 during the joint reign of his grandfather, King Berengar II of Italy, and his father, King Adalbert. His mother was Gerberga of Mâcon. His mother gave him what would later be the Free County of Burgundy around Dole in 982. Otto also inherited the duchy of Burgundy on the other side of the Saône in 1002 from his stepfather Eudes Henry the Great. The duchy then corresponded to the diocese of Besançon in the Holy Roman Empire. By 990 Otto-William was the Count of Nevers. He was also Count of Mâcon in France.
While the son of a king, he did not himself seek a royal wife. In c. 975—80, he married Ermentrude of Roucy, whose maternal grandmother, Gerberga of Saxony was a sister of Otto I, Holy Roman Emperor and by this marriage alliance created a web of consanguinity between later kings of France, Germany, Burgundy and the Carolingians. Even his children's spouses, although from great families, came from widespread and scattered parts of France.
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