Lilith Tisiphone Grimm (b. early 1970's) is the Dean of Charmbridge Academy, and the Grimm Triplets, being the younger sister of Diana and the older sister of Hecate Grimm. Through Hecate, she is a former sister-in-law of Abraham Thorn, and an aunt of Alexandra Quick. She attended Charmbridge during the 1980s. She instructed Alex not to use magic outside of school, and subsequently sent her a howler when Alex used an Unlocking Charm two days later.