Sigurd I Magnusson (c. 1090 – 26 March 1130), also known as
Sigurd the Crusader (
Old Norse:
Sigurðr Jórsalafari,
Norwegian:
Sigurd Jorsalfar), was
King of Norway from 1103 to 1130. His rule, together with his brother
Eystein I of Norway (until Eystein died in 1123), has been regarded by historians as a golden age for the medieval Kingdom of Norway. He is otherwise famous for leading the
Norwegian Crusade (1107–1110), earning the eponym "the Crusader".