By loosing the war
William became king after the battle of hastings William became king after the battle of hastings
William killed Harold and then became king
He became King on the 25th of December 1066.
he died
to be honest i think he then became king William the conqueror
William I, known as William the Conqueror.
William of Normandy (aka William the Conqueror)
vb
william the first became king in 1066
King William became king on christmas day in 1066. he died on Sept 9 1087
King James II of England William of Orange who became William III of England.
he became king of Prussia in 1888