Olav Haraldsson and the Christianization of Norway
Olav Haraldsson, son of a chieftain, was born in the first half of the 990s, at a time when Norway was divided into numerous dominions. After several years as a viking and mercenary abroad, Olav returned to Norway in 1015 with the goal to unite Norway as one Christian kingdom. One year earlier he had been baptized in the city of Rouen in Normandy.
Olav quickly managed to gain control of the country, and in 1024 Christianity became the only legal religion in Norway. In 1030 Olav was killed in the battle of Stiklestad and buried in Nidaros.