I'll have to check out Princess Maker (someone mentioned it when I said I wanted "estates" and "heirs" in WoW).

My guess is everyone would play an aristocratic woman, and there would be a number of "eligible bachelors" equal to the number of players, each with randomly selected attributes. As I said, something a bit more structured than a standard RPG (there wouldn't be a Game Master, after all), but players would pick their character's names, choose noteworthy characteristics and so forth.