Halfdan was brought up by his uncle Solve, the brother of Halfdan’s mother. Some of the Swedes decided it had been unfair to blame Halfdan’s father for the famine, and the real cause was overpopulation, so they sent a force against Solve, killed him, and brought Halfdan back as a prisoner. Halfdan was made a chieftain and later became a great king in Vestfold. He married Aase, daughter of Eystein the Severe, King of Hedmark and Upland. Halfdan died in his bed as an old man in 740.