Page "Magnus I of Norway" Paragraph 7

As part of consolidating his control, Magnus destroyed the Jomsborg, headquarters of the Jomsvikings.

Sweyn fled east and returned as one of the leaders of an invasion by the Wends in 1043, which Magnus decisively defeated at the Battle of Lyrskov Heath, near Hedeby.

In the battle, Magnus wielded Saint Olaf's battle-axe, named Hel after the goddess of death.

He had dreamed of his father the night before, and the Norwegians swore that before the battle they could hear the bell that Saint Olaf had given to the church at Kaupang-a sign that the saint was watching over his son and the army.

It was the greatest victory ever over the Wends, with up to 15, 000 killed.