Serana

Lol, just finished my playthrough as ancient vamp Dunmer, Morag Tong/Dark Brotherhood assassin. "Naive "damsel in distress" believed im some kind of vampire knight in shiny armor who wanted to save her from cruel reality. I played my role well. Even Lord Boethia himself was surprised by deviousness of my actions..." -Gareth of house Redoran 4E 202

Conclusion: never trust a dunmer assassin with boethian insignia. (Especially if you are some sexy vampire matron of clan devoted to Molag Bal).