Studies show that a combination of wealth, beauty, and aristocratic breeding can have only one outcome: extreme boredom. Luckily, this set of characters have found the only working solution: participation in the sort of morally dubious acts that lead mainland Europe to greatness in previous centuries!
Demonology, necrophilia and bestiality are just three of the more culturally sophisticated practices enjoyed (in various individual configurations) by the members of this group. Not surprisingly, outsiders just can't bring themselves to keep up with women like these, but who needs new blood when you have a sexy uncle, nephew, sibling or child anyway?
Money and mansions get boring quickly, but pentagrams and dead bodies liven things up.