HM George I's 14-Great Grandmother. Poss. HRE Ferdinand I's 14-Great Aunt. HRE Charles VI's 17-Great Grandmother. U.S. President [WASHINGTON]'s 16-Great Grandmother. PM Churchill's 22-Great Grandmother. Lady Diana's 21-Great Grandmother. `Red Baron' Richthofen's 21-Great Grandmother. Poss. `Osawatomie' Brown's 24-Great Aunt. Poss. Jamie's 23-Great Grandmother.