HM George I's 16-Great Aunt. HRE Ferdinand I's 13-Great Aunt. HRE Charles VI's 17-Great Aunt. U.S. President [WASHINGTON]'s 17-Great Grandmother. HRH Charles's 23-Great Grandmother. PM Churchill's 22-Great Grandmother. Poss. Agnes Harris's 16-Great Aunt. `Osawatomie' Brown's 22-Great Grandmother.