The self-proclaimed "lord of war," he is greatly admired by his followers. In addition, Ragu Silvertongue acknowledges him as a "great warrior."
Following the defeat of Herse Baugneson, Sweom sent a diplomatic delegation to the player in the Sleeping Lions I quest. In order to progress, the player must either defeat Sweom or Frigga Hengisdottir in the Show your Strength quest.
Sweom appears to be of Swedish origin due to his last name, Hunusson, using the Icelandic naming system. Therefore, his father's name is Hunus.