- William IX, Duke of Aquitaine
- Agnes of Aquitaine, Queen of Aragon and Navarre
- Beatrice? married firstly to Alfonso VI of Leon and Castile and secondly to Elias I, Count of Maine.
William’s birth was a cause of great celebration at the Aquitanian court, but the Church at first considered him illegitimate because of his parents’ consanguinity. This obliged his father to make a pilgrimage to Rome soon after his birth to seek papal approval of his marriage to Hildegarde.