Ehh, well... I think I might actually think I may recall a tidbit about Teutorix. I think he may be related to Chalid Astrakein. Don't quote me on that one though.
Anyways if we are just gonna make a story for him, we could make him a sort of counterpart to Chalid, or Varn. His cure for vampirism sort of suggests he may be a man of action. I'm imagining him as a sort of John Wayne-esq cowboy. That guy on the council, who you kinda wonder why is there in the first place, who seems to be the antithesis of the whole organization. He probably would be an Order sympathizer, and I would think would not get along with Decius because of it. In fact I can kinda imagine them as rivals, rivals who come to some sort of accord along the way.
Thats all I got for now, I'll think more on Herne