Barbara Palmer
(1640–1709)
1st Duchess of Cleveland | | King Charles II
(1630–1685) |
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| | | | | | | | | Duke of Monmouth
Dukes of Buccleuch | | | Dukes of St Albans | | | |
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Dukes of Cleveland
Dukes of Southampton | | | Duke of Northumberland | | Earl of Plymouth | | Dukes of Richmonds
Dukes of Lennox |
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| | Duke of Grafton, Earl of Euston, Viscount Ipswich and Baron Sudbury, 1675 |
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| | Henry FitzRoy
(1663–1690)
1st Earl of Euston
1st Duke of Grafton |
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| | Charles FitzRoy
(1683–1757)
2nd Duke of Grafton |
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Charles Henry FitzRoy
(1714–1715)
Earl of Euston | | George FitzRoy
(1715–1747)
Earl of Euston | | Lord Augustus FitzRoy
(1716–1741) |
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| | | | | | | | | | | | | Baron Southampton |
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| | | | | | Augustus Henry FitzRoy
(1735–1811)
3rd Duke of Grafton | | | | Charles FitzRoy
(1737–1797)
1st Baron Southampton |
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| | | | | | George Henry FitzRoy
(1760–1844)
4th Duke of Grafton | | | | George Ferdinand FitzRoy
(1761–1810)
2nd Baron Southampton |
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| | | | | | Henry FitzRoy
(1790–1863)
5th Duke of Grafton | | | | Charles FitzRoy
(1804–1872)
3rd Baron Southampton |
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| | William Henry FitzRoy
(1819–1882)
6th Duke of Grafton | | Augustus Charles Lennox FitzRoy
(1821–1918)
7th Duke of Grafton | | Viscounts Daventry | | | |
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Henry James FitzRoy
(1848–1912)
Earl of Euston | | Alfred William Maitland FitzRoy
(1850–1930)
8th Duke of Grafton | | Lord Charles Edward FitzRoy
(1857–1911) | | Ismay FitzRoy
(1863–1952) |
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| | | | William Henry Alfred FitzRoy
(1884–1918)
Viscount Ipswich | | | | Charles Alfred Euston FitzRoy
(1892–1970)
10th Duke of Grafton |
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| | | | John Charles William FitzRoy
(1914–1936)
9th Duke of Grafton | | | | Hugh Denis Charles FitzRoy
(1919–2011)
11th Duke of Grafton |
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| | | | | | | | | | | | | |
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| | | | | | | | | | James Oliver Charles FitzRoy
(1947–2009)
Earl of Euston |
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| | | | | | | | | | | | | |
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| | | | | | | | | | Henry Oliver Charles FitzRoy
(b. 1978)
12th Duke of Grafton |
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| | | | | | | | | | | | | |
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| | | | | | | | | | Alfred James Charles FitzRoy
(b. 2012)
styled Earl of Euston |
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| | | | | | | | | | Heir apparent |
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