Alan IV, Duke of Brittany of William the Bastard, Duke of Normandy (later to become known as William the Conqueror) support of rebels in Brittany against Alan's maternal uncle, Conan II. Conan II died in late 1066 during a campaign in Anjou, and was succeeded by Alan's parents, Conan's sister Hawise and her husband Hoel II. Hoel ruled as regent from Hawise's death in 1072 until Alan reached his majority in 1084. To prevent further hostilities during his invasion of England, William I married his daughter Constance to the new duke Alan in 1087. The marriage ceremonies may have taken place in Bayeux in Normandy.
William Hamilton, 11th Duke of Hamilton William Hamilton, 11th Duke of Hamilton William Alexander Archibald Hamilton, 11th Duke of Hamilton and 8th Duke of Brandon (19 February 1811 – 8 July 1863) styled Earl of Angus before 1819 and Marquess of Douglas and Clydesdale between 1819 and 1852, was a Scottish nobleman and the Premier Peer of Scotland. He was the son of Alexander Hamilton, 10th Duke of Hamilton and Susan Euphemia Beckford, daughter of English novelist William Beckford. He was educated at Eton and Christ Church, Oxford. He was Knight Marischal of Scotland from 1846 and Lord Lieutenant of Lanarkshire from 1852 until his death.