William I[a] (c. 1028[1] – 9 September 1087), usually known as William the Conqueror and sometimes William the Bastard,[2][b] was the first Norman king of England, reigning from 1066 until his death in 1087. A descendant of Rollo, he was Duke of Normandy from 1035 onward. By 1060, following a long struggle to establish his throne, his hold on Normandy was secure. In 1066, following the death of Edward the Confessor, William invaded England.