Poss. U.S. President [BUSH-41]'s 22-Great Grandfather. HRH Charles's 17-Great Grandfather. Lady Diana's 18-Great Uncle. HRH Albert II's 17-Great Grandfather. HM Juan Carlos' 17-Great Grandfather. Philippe of Belgium's 17-Great Grandfather. HM Manuel II's 16-Great Grandfather. HM Beatrix's 16-Great Grandfather. Ksr Wilhelm II's 15-Great Grandfather.