A non-playable character in Fate/Grand Order's story chapter Epic of Remnant IV: Heretical Salem. She is a close friend of Abigail Williams and the same age as her. She is the granddaughter of Absalom Whateley.
Her name is taken from the character Lavinia Whateley in H. P. Lovecraft's short story The Dunwich Horror, but she has relatively little in common with the Lovecraft character. She was brought into existence by Raum in order to give Abigail a friend of the same age and to help facilitate the Salem singularity, having been implanted with false memories.
