England in the Middle Ages Normandy. Norman rule, however, proved unstable; successions to the throne were contested, leading to violent conflicts between the claimants and their noble supporters. William II inherited the throne but faced revolts attempting to replace him with his older brother Robert or his cousin Stephen of Aumale. In 1100, William II died while hunting. Despite Robert's rival claims, his younger brother Henry I immediately seized power. War broke out, ending in Robert's defeat at Tinchebrai and his subsequent life imprisonment. Robert's son Clito remained free, however, and formed the focus for fresh revolts until his death in 1128. Henry's only legitimate
Henry I of England now had the best claim to the throne. William of Breteuil championed the rights of Robert, who was still abroad, returning from the Crusade, and to whom Henry and the barons had given homage in previous years. Henry argued that, unlike Robert, he had been born to a reigning king and queen, thereby giving him a claim under the right of porphyrogeniture. Tempers flared, but Henry, supported by Henry de Beaumont and Robert of Meulan, held sway and persuaded the barons to follow him. He occupied Winchester Castle and seized the royal treasury. Henry was hastily crowned king in Westminster