Valentina della Passaglia was a faithful Giovanni ghoul of the Della Passaglia family.
She died in the aftershocks of the Fourth Great Maelstrom by protecting her domitor. Not long afterwards, Valentina returned as a Wraith, warning the Giovanni against conducting the Ritual of the Endless Night, as their control over ghosts would immediately fade. Her views became the basis for Valentinism.
Reference[]
WTO: Wraith: The Great War, p. 201-202