Haraldr harðráði, 1015 – September 25, 1066, also called Harald Sigurdsson, was the King of Norway from 1047 until 1066. Many details of his life were chronicled in the Heimskringla. Among English-speakers, he is generally known as "Harold Hardrada" and remembered for his invasion of England in 1066. The death of Hardrada is often recorded as the end of the Viking era.