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.
Charles William, Prince of Nassau-Usingen Charles William, Prince of Nassau-Usingen Charles William (9 November 1735 in Usingen – 17 May 1803) was Prince of Nassau-Usingen from 1775 until his death. From 1797 until his death, he was also titular Prince of Nassau-Saarbrücken, however, Nassau-Saarbrücken was occupied by France during that period. He was the eldest son of Prince Charles of Nassau-Usingen and his wife, Christina Wilhelmina, the daughter of Duke John William III of Saxe-Eisenach. In 1770, Charles William became Lieutenant-General in the Dutch army. In 1789, he was promoted to general and in 1790 to colonel of the Walloon regiment and captain of the