[@Flagg]Tell me if this sounds too wild to you: I'm thinking up a noblewoman of a province, or a princess of a minor state under Aldebaran's sovereignty. Once loyal to the empire, her house and others allied to it began to renounce their allegiance to Dagon after witnessing the horrors wrought by his pact. However, they found themselves changed by the sorcery ravaging the country, turned into something resembling vampires or strigoi. One way or another, they avoided loosing their minds and fled, escaping Dagon's tyranny, but becoming branded as traitors in the process. 
Left with no choice but to join the Scarred King, they fight against their former subjects, hoping that one day, they might see their land restored to normal. Despite their good intentions, the magics unleashed by Dagon's pact have transformed them into vampiric beings, possessed of powerful abilities, but in a constant struggle to remain in control of their bestial urges. On top of this, they are ostracized by most of their new allies, being a product of the magic that they fight against.