WELCOME! THE LIST OF MEN CALLED "WILLIAM, DUKE OF AQUITAINE" Here follows a list of the order of the dukes of Aquitaine and counts of Poitou by the Bollandist Henschenius* (Feb. II. 378): 1) William I. , nicknamed "the Pious" (Pius), the son of Duke Bernard of Auvergne and his wife Hermengard, was duke of the first Aquitaine. He is the founder of the world-famous Cluny monastery, founded in 890. His wife's name was Ingelberga. He left no children, but did have grandchildren by his sister Adalnidis, including a Duke William of Aquitaine whose father's name was Acfred. 2) William II. (I.) followed in the second Aquitaine as the son of Ebolus, who died in A.D. 935. He had the nickname "Flaxhead " (Caput stupae) and should really be counted as William I in the second Aquitaine, just as he is Duke William IV. if you count all the Dukes William of Aquitaine that existed, including William of Gellone , and also "William the Pious" and his...