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 Malet (companion of William the Conqueror) "Domesday Book" also mentions a Durand Malet, who held land in Lincolnshire and possibly some neighbouring shires. This may be William Malet's brother, but this is not certain. On screen, Malet has been portrayed by Peter Halliday in the two-part BBC TV play "Conquest" (1966), part of the series "Theatre 625", and by Gawn Grainger in the TV drama "Blood Royal: William the Conqueror" (1990). He had married Hesilia (Helise or Elisee). He was succeeded by his son Robert as Lord of Eye and Sheriff of Suffolk. His other son Gilbert founded the Malets of Shepton Mallet. He died around