I thought this was kind of fun (not that I think it would be all that much of a thrill to be a bona fide Viking, of course, but that's another matter altogether...).
This Link will allow you to know what they might call you were you Icelandic and such....
Hereafter, you may refer to me as
Sigmund the Bloody, if you don't mind

!
I put my arch-enemy's name in and it came back
Úlf , the One who will be killed before the opening credits start when Hollywood makes the movie version of this raid ~ and I'm not making that up, either! Priceless.