You always have such interesting Dracos and the put-upon Death Eater and hard-working Auror who has to put up with Harry's crap is fascinating. He's just doing his job and this lackadaisical Potter is hanging around his desk and making a nuisance of himself. Plus he has to put up with the overweening crap of the Death Eaters. This Prince has me intrigued. Severus was a good guess, but a bit obvious (and no longer living). I have at least one guess, but I will have to see what develops further to figure out if it is even viable.