Poss. HM George I's 20-Great Grandmother. Poss. U.S. President [GARFIELD]'s 24-Great Grandmother. Poss. PM Churchill's 26-Great Grandmother. Poss. Lady Diana's 26-Great Grandmother. Poss. Louis XVII's 21-Great Grandmother. Poss. `Osawatomie' Brown's 25-Great Grandmother. Poss. Jamie's 27-Great Grandmother.