Siwald, the son of Sigar, had thus far stayed under his father’s roof. But when he heard of this, he mustered an army in order to have his vengeance. So Hakon, alarmed at the gathering of such numbers, went back with a third of his army to his fleet at Herwig, and planned to depart by sea. But his colleague, Hakon, surnamed the Proud, thought that he ought himself to feel more confidence at the late victory than fear at the absence of Hakon; and, preferring death to flight, tried to defend the remainder of the army. So he drew back his camp for a little, and for a long time waited near the town of Axelsted, for the arrival of the fleet, blaming his friends for their tardy coming. For the fleet that had been sent into the river had not yet come to anchor in the appointed harbour. Now the killing of Sigar and the love of Siwald were stirring the temper of the people one and all, so that both sexes devoted themselves to war, and you would have thought that the battle did not lack the aid of women.
On the morrow Hakon and Siwald met in an encounter and fought two whole days. The combat was most frightful; both generals fell; and victory graced the remnants of the Danes. But, in the night after the battle, the fleet, having penetrated the Susa, reached the appointed haven. It was once possible to row along this river; but its bed is now choked with solid substances, and is so narrowed by its straits that few vessels can get in, being prevented by its sluggishness and contractedness. At daybreak, when the sailors saw the corpses of their friends, they heaped up, in order to bury the general, a barrow of notable size, which is famous to this day, and is commonly named Hakon’s Howe.