William VIII, Duke of Aquitaine
William VIII, born Guy-Geoffrey (Gui-Geoffroi), was duke of Gascony (1052–1086), and then duke of Aquitaine and count of Poitiers between 1058 and 1086, succeeding his brother William VII (Pierre-Guillaume).
William VIII, Duke of Aquitaine
The Duke of Aquitaine was the ruler of the medieval region of Aquitaine under the supremacy of Frankish, English, and later French kings.
Homage of Edward I of England (kneeling) to Philip IV of France (seated), by Jean Fouquet. As Duke of Aquitaine, Edward was a vassal to the French king