When King Halfdan heard of these disturbances in Raumarike, he again
gathered his army together; and went out against King Eystein. A battle
took place between them, and Halfdan gained the victory, and Eystein
fled up to Hedemark, pursued by Halfdan. Another battle took place, in
which Halfdan was again victorious; and Eystein fled northwards, up
into the Dales to the herse Gudbrand. There he was strengthened with
new people, and in winter he went towards Hedemark, and met Halfdan the
Black upon a large island which lies in the Mjosen lake. There a great
battle was fought, and many people on both sides were slain, but Halfdan
won the victory. There fell Guthorm, the son of the herse Gudbrand, who
was one of the finest men in the Uplands. Then Eystein fled north up the
valley, and sent his relation Halvard Skalk to King Halfdan to beg for
peace. On consideration of their relationship, King Halfdan gave King
Eystein half of Hedemark, which he and his relations had held before;
but kept to himself Thoten, and the district called Land. He likewise
appropriated to himself Hadeland, and thus became a mighty king.