Willem I "the Silent"
                         Prince of Orange, Count of Nassau
                         1533-1584
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                         Maurits
                         Prince of Orange, Count of Nassau
                         1567-1625
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                         Lodewijk van Nassau
                         Heer van Beverweerd
                         1602-1665
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                         Elisabeth van Nassau
                         1633-1718
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                         Lady Isabella Bennet
                         2nd Countess of Arlington
                         1667-1722
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                         Charles Fitzroy
                         2nd Duke of Grafton, 3rd Earl of Arlington
                         1683-1757
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                         Lord Augustus Fitzroy
                         1716-1741
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                         Augustus Henry Fitzroy
                         3rd Duke of Grafton
                         1735-1811
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                         Rev. Lord Henry Fitzroy
                         1770-1828
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                         Rev. Henry Fitzroy
                         1806-1877
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                         Blanche Adeliza Fitzroy
                         1839-1933
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                         James St.Clair-Erskine
                         5th Earl of Rosslyn
                         1869-1939
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                         Lady Mary Sybil St.Clair-Erskine
                         1912-
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                         Serena Mary Dunn
                         1934-