[quote=@HeySeuss]
I've had a couple ideas regarding the claim to the Justinian Imperium whose family lost a civil war...maybe there was a mating with the bloodline of the Dark Lord. I don't want to play that character, but I certainly want to play someone trying to manipulate the Empire's disarray to create the opportunity for that person.
[/quote]

Just to clarify: the Imperium is technically ruled by the god Justinian himself, who is like, an incarnate, real person who is tremendously powerful. A civil war against his rule is totally possible, so your idea is good to go, I just wanted to make that clearer in case the OP wasnt. Justinian doesnt go out much, and is mostly in his vast Temple-Palace and lets noble families and the Clerisy run the show.