Guttorm Haraldsson was the first son of King Harald Fairhair of Norway and ÃÂ sa, daughter of HÃÂ¥kon Grjotgardsson, who was the first Earl of Lade.
Harald had wrested RÃÂ¥nrike in Viken from the Swedish King Erik Eymundsson. Harald made Guttorm king over RÃÂ¥nrike and gave him the responsibility of defending southeast Norway from Sweden.
Guttorm fell in a sea battle against the sea-king Solve Huntiofsson (Solve Klove), son of Huntiof, King of Nordmøre. Solve Klove had earlier escaped capture at the First battle of Solskjel (ca. 870) in which both King Huntiof and King Nokkve of Romsdal had been slain.