Olav Gudbrandsson was the son of Gudbrand Skavhoggsson (Guðbrandr Skafhǫggsson) and Maria Øysteinsdotter (María Eysteinsdóttir), the daughter of King Eystein I of Norway and his wife Ingebjørg Guttormsdatter. Olav was fostered by Sigurd Agnhatt (Sigurðr agnhǫttr) in the Oppland region of eastern Norway.
Olav Gudbrandsson was the son of Gudbrand Skavhoggsson (Guðbrandr Skafhǫggsson) and Maria Øysteinsdotter (María Eysteinsdóttir), the daughter of King Eystein I of Norway and his wife Ingebjørg Guttormsdatter. Olav was raised by Sigurd Agnhatt (Sigurðr agnhǫttr) in the Oppland region of eastern Norway.