The battle of Fityar is a battle in 961 , in which the Norwegian king Hakon I the Good fell in battle with the sons of the ousted Eirik the Bloody Ax . Despite the fact that the army of Hakon was able to decisively defeat the army of his nephews, Hakon himself was mortally wounded in this battle and died. After that, it was precisely the son of Eirik Harald II Gray Skin who could be in power in Norway.