Willem I "the Silent"
                         Prince of Orange, Count of Nassau
                         1533-1584
                             |
                             |
                         Countess Charlotte Brabantina von Nassau
                         1580-1631
                             |
                             |
                         Charlotte de La Tremouille
                         1602-1664
                             |
                             |
                         Lady Amelia Ann Sophia Stanley
                             |
                             |
                         Lord Charles Murray
                         1st Earl of Dunmore
                         1661-1710
                             |
                             |
                         Lady Anne Murray
                         1687-1710
                             |
                             |
                         Lady Catherine Cochrane
                         1709-1786
                             |
                             |
                         John Stewart
                         7th Earl of Galloway
                         1735-1806
                             |
                             |
                         George Stewart
                         8th Earl of Galloway
                         1768-1834
                             |
                             |
                         Lady Louisa Stewart
                         1804-1889
                             |
                             |
                         William Ernest Duncombe
                         1st Earl of Feversham
                         1829-1915
                             |
                             |
                         William Reginald Duncombe
                         Viscount Helmsley
                         1852-1881
                             |
                             |
                         Hon. Mabel Theresa Duncombe
                         1877-1913
                             |
                             |
                         Beatrice Helen Beckett
                         1905-1957