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 Ziębice Henry I of Ziębice Henry I of Ziębice (; b. – d. aft. 8 August 1366), was a titular Duke of Ziębice from 1358 until his death. He was the second and youngest son of Nicholas the Small, Duke of Ziębice, by his wife Agnes, daughter of Herman Krušina of Lichtenberg. After his father's early death in 1358, Henry I and his older brother Bolko III succeeded him in the Duchy of Ziębice as co-rulers; however, because they are minor at that time, their mother, the Dowager Duchess Agnes held the regency on their behalf until 1360, when Bolko III