Olavs most important act as king, was to Christianize huge parts of his kingdom, though sometimes he had to use violence.
Olav is the founder of Nidaros and he is supposed to have raised a church at Moster.
Olav was approved king together with his brothers Øystein and Sigurd Jorsalfar, but since he wasn't king over the whole country, he does not belong within the official row of kings.
Olav Magnusson (1103-1115)(Site not responding. Last check: 2007-10-07)
hen Magnus Berrføtt (Bareleg) died in 1103, he left three sons who were made joint kings: Øystein (Eystein I), Sigurd (Sigurd I Magnusson) who was later given the epithet "Jorsalfare" (the Crusader), and Olav (Olaf IV).
At the time of their father's death Øystein was 14 years old, one year older than Sigurd, while Olav was only three or four.
OlavMagnusson is not recognised in the line of Norwegian kings and little is known about him.