Ro is said to have been the founder of Roskild, which was later increased in population and enhanced in power by Sweyn, who was famous for the surname Forkbeard.

Ro was short and spare, while Helge was rather tall of stature.

Dividing the realm with his brother, Helge was allotted the domain of the sea; and attacking Skalk, the King of Sklavia, with his naval force, he slew him.

Having reduced Sklavia into a province, he scoured the various arms of the sea in a wandering voyage.

Savage of temper as Helge was, his cruelty was not greater than his lust.