Olaf, St. A Norwegian king. Wrested the throne from Eric, and set himself to propagate Christianity by the sword. Excited disaffection among his people, who rebelled and overpowered him with the assistance of Cnut of Denmark, so that he fled to his brother-in-law, Jaroslav of Russia. By his help, he tried to recover the throne, but was defeated and slain, his body being buried in Trondheim. He was canonized in 1164, and is patron saint of Norway.