Despite a decisive victory over a Viking invasion just 3 weeks before, he lost the Battle of Hastings in 1066
[DOC] [TLE] Battle of Hastings | Middle Ages - The Finer Times [PAR] On Saturday 14th October 1066 King Harold II of England was defeated by 
William, ... as William the Conqueror) at what is now known as the Battle of 
Hastings.