Voici les parentés entre le Prince William, Duke of Cambridge, et ses filleuls :
1.
| George I, roi des Hellènes 1845-1913 &1867 Olga de Russie 1851-1926 | ||
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| Andrew de Grèce 1882-1944 &1903 Alice Mountbatten, Prinzessin von Battenberg 1885-1969 |
Constantine I, roi des Hellènes 1868-1923 &1889 Sophie von Preußen 1870-1932 |
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| Philip Mountbatten, Duke of Edinburgh 1921- &1947 Elizabeth II, Queen of Great Britain and Northern Ireland 1926- |
Paul Ier, roi des Hellènes 1901-1964 &1938 Friederike von Hannover 1917-1981 |
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| Charles Mountbatten-Windsor, Prince of Wales 1948- &1981 Diana Spencer 1961-1997 |
Constantine II, roi des Hellènes 1940- &1964 Anne-Marie af Danmark 1946- |
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| William Mountbatten-Windsor, Duke of Cambridge 1982- | Paul, duc de Sparte 1967- &1995 Marie-Chantal Miller 1968- |
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| Constantin de Grèce 1998- | ||
2.
| Henry Baring 1776-1848 &1825 Cecilia Anne Windham 1803-1874 | ||
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| Edward Charles Baring, Baron Revelstoke 1828-1897 &1861 Louisa Bulteel 1839-1892 |
Cecilia Annetta Baring 1832-1911 &1854 Charles Harbord, Baron Suffield 1830-1914 |
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| Margaret Baring 1868-1906 &1887 Charles, Earl Spencer 1857-1922 |
Cecilia Margaret Harbord 1856-1934 &1878 Charles Robert Wynn-Carrington, Marquess of Lincolnshire 1843-1928 |
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| Albert, Earl Spencer 1892-1975 &1919 Cynthia Hamilton 1897-1972 |
Victoria Alexandrina Wynn-Carrington 1892-1966 &1913 Nigel Walter Henry Legge-Bourke 1889-1914 |
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| Edward John, Earl Spencer 1924-1992 &1954 Frances Burke Roche 1936-2004 |
Henry Legge-Bourke 1914-1973 &1938 Catherine Jean Grant 1917-2007 |
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| Diana Spencer 1961-1997 &1981 Charles Mountbatten-Windsor, Prince of Wales 1948- |
William Nigel Henry Legge-Bourke 1939-2009 &1964 Shân Bailey 1943- |
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| William Mountbatten-Windsor, Duke of Cambridge 1982- | Alexandra Shân Legge-Bourke 1965- &1999 Charles Pettifer |
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| Tom Pettifer 2002- | ||
3.
| John Shafto +1742 & Mary Jackson +1768 | ||
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| Dorothy Shafto +1805 &1763 Wilmot Vaughan, Earl of Lisburne 1730-1800 |
Robert Shafto 1732-1797 &1774 Anne Duncombe +1776/ |
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| Dorothy Elizabeth Vaughan +1849 &1792 Lawrence Palk +1813 |
Robert Shafto 1776-1848 &1803 Catherine Eden +1872 |
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| Elizabeth Palk 1797-1827 &1818 Horace Seymour 1791-1856 |
Slingsby Shafto 1813-1848 &1838 Frances Hunter 1826 |
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| Adelaide Seymour 1825-1877 &1854 Frederick, Earl Spencer 1798-1857 |
Eleanor Shafto 1847-1913 &1865 Robert Charles de Grey Vyner 1842-1915 |
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| Charles, Earl Spencer 1857-1922 &1887 Margaret Baring 1868-1906 |
Mary Evelyn Violet Vyner 1867-1957 &1886 Alwyne Frédérick Compton 1855-1911 |
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| Albert, Earl Spencer 1892-1975 &1919 Cynthia Hamilton 1897-1972 |
Edward Robert Francis Compton 1891-1977 &1918 Sylvia Farquharson 1899-1950 |
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| Edward John, Earl Spencer 1924-1992 &1954 Frances Burke Roche 1936-2004 |
Mary Compton 1919-1989 &1939 Bernard Henry Richard van Cutsem 1916-1975 |
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| Diana Spencer 1961-1997 &1981 Charles Mountbatten-Windsor, Prince of Wales 1948- |
Hugh van Cutsem 1941-2013 &1971 Emilie Quarles van Ufford 1946- |
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| William Mountbatten-Windsor, Duke of Cambridge 1982- | Hugh van Cutsem 1974- &2005 Rose Astor 1979- |
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| Grace van Cutsem 2007- | ||
Gothanjou 