William VIII, Duke of Aquitaine
William VIII, born Guy-Geoffrey, was duke of Gascony, and then duke of Aquitaine and count of Poitiers between 1058 and 1086, succeeding his brother William VII. Wikipedia
Born: 1025, Poitiers, France
Died: September 25, 1086 (age 61 years), Chizé, France
Spouse: Hildegarde of Burgundy (m. 1069)
Grandchildren: William X, Duke of Aquitaine, Agnes of Aquitaine, wife of Ramiro II of Aragon, Raymond of Poitiers, and more
Siblings: Agnes of Poitou