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 Hamilton, Duke of Hamilton and Mary II in March 1689. His death took place at Holyrood Palace on 18 April 1694. His wife survived until 17 April 1716. He was married to Anne Hamilton, 3rd Duchess of Hamilton, who bore eleven children by him. He adopted the surname Douglas-Hamilton and the Hamilton arms, and his children bore the surname Hamilton. William Hamilton, Duke of Hamilton William Douglas-Hamilton, Duke of Hamilton, KG, PC (24 December 1634 – 18 April 1694), also known as Lord William Douglas and the Earl of Selkirk, was a Scottish nobleman and politician. He was the eldest son of William Douglas,