William the Conqueror eldest son. William was the son of the unmarried Robert I, Duke of Normandy, by Robert's mistress Herleva. His illegitimate status and his youth caused some difficulties for him after he succeeded his father, as did the anarchy that plagued the first years of his rule. During his childhood and adolescence, members of the Norman aristocracy battled each other, both for control of the child duke and for their own ends. In 1047 William was able to quash a rebellion and begin to establish his authority over the duchy, a process that was not complete until about 1060. His marriage
Adalbero, Duke of Carinthia Adalbero, Duke of Carinthia Adalbero of Eppenstein ( – 29 November 1039) was Duke of Carinthia and Margrave of Verona from 1011 or 1012 until 1035. Adalbero was the son of the Bavarian count Markward of Eppenstein, who around 970 had married Hadmud, a daughter of Count Adalbero of Ebersberg and ruled as Margrave of Styria. About 1000 Adalbero succeeded his father as Styrian margrave. He was married to Beatrix, probably a daughter of Duke Herman II of Swabia from the Conradine dynasty and sister-in-law of the later Salian emperor Conrad II. Upon the death of the Salian duke Conrad