Line of Descendancy from King Charles I of England to Ferdinand Mount ..1 King Charles I of England (1600 - 1649) .. + Henriette Marie Bourbon (1609 - 1669) ....2 King Charles II of England (1630 - 1685) .... + Barbara Villiers (about 1641 - 1709) ......3 Sir Henry Fitzroy (1663 - 1690) ...... + Isabella Bennet (1667 - 1723) ........4 Sir Charles Fitzroy (1683 - 1757) ........ + Henrietta Somerset (1690 - 1726) ..........5 Augustus Fitzroy (1716 - 1741) .......... + Elizabeth Cosby ( - 1788) ............6 Sir Augustus Henry Fitzroy (1735 - 1811) ............ + Anne Liddell ( - 1804) ..............7 Gen. Sir Charles Fitzroy (1764 - 1829) .............. + Frances Anne Stewart ( - 1810) ................8 Frances Fitzroy (1803 - 1878) ................ + Sir George Rice Rice-Trevor (1795 - 1869) ..................9 Selina Rice-Trevor (1836 - 1918) .................. + Sir William Lygon Pakenham (1819 - 1887) ....................10 BGen Sir Thomas Pakenham (1864 - 1915) .................... + Mary Julia Child-Villiers (1877 - 1933) ......................11 Julia Agnes Cynthia Pakenham (1913 - 1956) ...................... + Robert Francis Mount (1907 - 1969) ........................12 William Robert Ferdinand Mount (1939 - )