Why did william of Normandy become king?
William of Normandy was related to the king of England and was next in line for the throne when the king died instead of him another person became king and seeking revenge he led an attack on England and won.
King William is known by different names of which include, William the conqeror and William of Normandy, an epithet probably given by himself. He defeated King Harold at the Battle of Hastings in 1066 in order to become King and later claimed that he owned all of the land in England "by right of conquest." He was the Duke of Normandy and the leader of the Norman Army.
William, Duke of Normandy, claimed that Edward the Confessor had promished him the throne, but there's NO evidence that he did so. MY ANSWER!!!!! William of Normandy believed he was entitled to the throne of England because he claimed the Edward swore the holy grails for when he died he was to become King. Although William says this there is no evidence that he did so.