House Targaryen

Silver haired, purple eyed crazy incest babies. Not all of Targs are cray cray, but somehow they always find a way to do some questionable shit. Despite all of this, people love them. I blame the dragons, and a prophecy one of them tried to fulfill that resorted in the downfall of this incesteous dynasty prior to Game of Thrones.

To keep the bloodlines pure, Harry, of House Targaryen, is going to marry his sister, Sally.
Hopefully, when they have babies, the gods will flip the coin on greatness.