[He can pick up on that thread easy enough, at least. And there's at least one he knows of for sure....]

There are stories about Dracula's son, who turned against his father. His mother was human - I'm not sure if this is a part I got told because my mother's a doctor, but the way I heard it, she met Dracula because she'd heard he could teach her real science, so she could heal people. Turned out he wasn't so dead as to be immune to a charming lady, and inevitably they got married, had a kid.

It... turns into a sad story. Do you want to hear the whole thing, or should I just skip ahead to the parts my ancestors are in?