Poss. HM George I's 17-Great Grandfather. Poss. HRE Ferdinand I's 14-Great Grandfather. Poss. HRE Charles VI's 17-Great Grandfather. Poss. U.S. President [WASHINGTON]'s 22-Great Grandfather. HRH Charles's 27-Great Grandfather. HRH Albert II's 24-Great Grandfather. Poss. `Osawatomie' Brown's 25-Great Grandfather. Poss. Jamie's 27-Great Grandfather.