Mysterious Family Coats of Arms

From: Detective
Description: Well, it turns out that the ghosts in the mirror are all wealthy and famous noblemen. What’s more, every single one of them disappeared right after their weddings. Don’t you find that interesting? I also noticed that this jewelry box bears the same coat of arms as the ghosts’, but it’s locked, and I can’t find the keyhole. It seems to have been locked with some kind of powerful magic.
Completed: Look, there’s a marriage certificate inside the box. Unbelievable! Every one of these rich aristocrats was married to the Mistress! There’s even a newspaper clipping here, look what it says.