Queen Thebe

Queen Thebe is the deceased mother of Andromache Thebe, the mother of Consort Capp. She is completely unplayable unless you use hacks or mods, but can be brought back briefly using the Tombstone of Life & Death. She only appears for a second before fading away (due to the Dead Token), and becomes stuck in the family, creating a glitch where no-one can move out of the house.

Note
Her name may suggest royalty, meaning the current generations are of noble blood.