HRH Charles's 12-Great Aunt. HM Juan Carlos' 11-Great Aunt. Philippe of Belgium's 11-Great Grandmother. HM Manuel II's 10-Great Aunt. Grand Duke Henri's 10-Great Grandmother. HM Margrethe II's 11-Great Aunt. HM Beatrix's 9-Great Grandmother. HM Constantine II's 10-Great Grandmother. HM Carl XVI Gustaf's 10-Great Grandmother. HM Harald V's 11-Great Aunt. Ksr Wilhelm II's 9-Great Aunt.