Asleifr Grimvardarson is one of your clansmen who contests for the title of thegn of Skjern. After defeating the Erlingrsons, he will use his claim and challenge you to single combat in holmgang, which starts the quest Something To Prove. After he is defeated in combat, you can let him join the hird, exile him or execute him immediately.
Romance[]
Female player characters can romance Asleifr in the second act. Though you can't decide when the romancing event starts, it is randomly triggered while you stay at a campsite if his morale is -3 or lower and you have completed either Ghosts of the Empire or Wisdom of the Ancients.
Default stats[]
When he joins the party after he is beaten during the holmgang, he has the following statistics:
Asleifr Grimvardarson - Default Stats and Equipment