Duke of Normandy as the reign of William II (1035–87), the ruler of Normandy could style himself "prince and duke, count of Normandy" as if unsure what his title should be. The literal Latin equivalent of "Duke of Normandy", "dux Normanniae", was in use by 1066, but it did not supplant "dux Normannorum" until the Angevin period (1144–1204), at a time when Norman identity was fading. Richard I experimented with the title "marquis" ("marchio") as early as 966, when it was also used in a diploma of King Lothair. Richard II occasionally used it, but he seems to have preferred the title duke.
William II, Duke of Aquitaine Magyars. William died soon after. In 924 the duke Raoul of Burgundy came up to the Loire river and William was forced to make his submission to him. Upon which Raoul, relieved that such a powerful vassal accepted his suzerainty, gave him back the counties of Berry and Macon and the town of Bourges. William II, Duke of Aquitaine William II the Young (died 12 December 926) was the Count of Auvergne and Duke of Aquitaine from 918 to his death, succeeding his uncle William I. William was son of the Acfred I of Carcassonne and Adelinde, William I's sister