William the Conqueror Becomes Duke of Normandy

William the Conqueror ascended to the title of Duke of Normandy following the death of his father, Robert I. Born to a noble family, William was the illegitimate son of Robert, which raised challenges to his claim. His ascent was marked by political turbulence as various factions contested his legitimacy, leading to a period of unrest. Supported by key allies, he was able to consolidate power in Normandy and began to establish himself as a formidable leader in the region.