He could also be related to Gard, lots of Scandinavians have red hair, remember the famous Viking, Eric the Red?
But red hair is associated with the Irish, not the Scandanavians. Yes, there are red haired Vikings, but from what I've seen Blonde and Black hair is WAAAAY more common than Red hair.
Edit: And you keep bringing up Eric the Red. Are you a descendant or something? Not mocking, I'm just curious.