| | | | John de Forbes |
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| | | | Lord Forbes, c. 1444 | | | | |
| | | | Alexander Forbes c. 1380–1448 1st Lord Forbes c. 1444–1448 |
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| | | | James Forbes d. 1462 2nd Lord Forbes 1448–c. 1461 |
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| | | | William Forbes d. 1483 3rd Lord Forbes c. 1461–by 1488 | | | | | | | | | | | | | | Duncan Forbes | | | | | | | | | | | | | | Patrick Forbes |
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Alexander Forbes d. c. 1491 4th Lord Forbes by 1488–c. 1491 | | Arthur Forbes d. c. 1496 5th Lord Forbes c. 1491–c. 1496 | | John Forbes d. 1547 6th Lord Forbes c. 1496–1547 | | | | | | | | | | Forbes, later Stuart-Forbes, of Monymusk | | | | | | | | | | | | | | Forbes, of Castle Forbes |
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| | | | | | | | William Forbes 1513–1593 7th Lord Forbes 1547–1593 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | John Forbes 1542–1606 First called "Master of Forbes", then 8th Lord Forbes 1593–1606 | | | | | | | | | | | | | | | | | | | | | | | | | | William Forbes of Corse Castle d. 1627 |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Forbes baronets, of Castle Forbes, 1628 |
William Forbes 1563–1592 | | John Forbes 1570–1606 "(9th) Lord Forbes" 1606–1606 His brief lordship was disputed and retroactively discounted. | | Arthur Forbes 1581–1641 9th Lord Forbes 1606–after 1634 | | John Forbes 8th of Pitsligo d. 1625 | | | | | | | | | | | | | | | | | | William of Craigievar | | Arthur Forbes d. 1632 1st Baronet of Castle Forbes |
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| | | | | | | | | | | | | | | | | | | | | | Lord Forbes of Pitsligo, 1633 | | | | | | | | | | Forbes baronets, of Craigievar Castle, in the County of Aberdeen, 1630 | | Viscount Granard and Baron Clanehugh, 1675 Earl of Granard, 1684 |
| | | | | | | | Alexander Forbes 1600–1672 10th Lord Forbes after 1634–1672 | | Anne | | | | | | Alexander Forbes d. 1636 1st Lord Forbes of Pitsligo 1633–1636 | | | | | | | | | | William Forbes, 1st Baronet d. 1648 1st Baronet of Craigievar and Fintray 1630–1648 | | Arthur Forbes 1623–1695 1st Earl of Granard, etc., 2nd Baronet of Castle Forbes |
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| | | | William Forbes d. 1697 11th Lord Forbes after 1672–1697 | | | | | | John Forbes of Moneymusk d. c. 1713 3rd Baronet of Monymusk | | | | | | Alexander Forbes d. 1690 2nd Lord Forbes of Pitsligo 1636–1690 | | | | | | Alexander Forbes of Foveran d. 1697 | | John Forbes, 2nd Baronet ("Red Sir John") 1636–1703 2nd Baronet of Craigievar and Fintray 1648–1703 | | Arthur Forbes c. 1656–1734 2nd Earl of Granard, etc., 3rd Baronet of Castle Forbes |
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William Forbes 1656–1716 12th Lord Forbes 1697–1716 | | | | | | | | | | | William Forbes of Monymusk 4th Baronet of Monymusk | | John Forbes b. 1680 | | Alexander Forbes c. 1655–1690 3rd Lord Forbes of Pitsligo 1690–1690 | | Samuel Forbes, 1st Baronet 1653–1717 1st Baronet of Foveran | | John Forbes, of Knaperna | | William Forbes, 3rd Baronet 1660–c. 1730 3rd Baronet of Craigievar and Fintray 1703–c. 1730 | | George Forbes 1685–1765 3rd Earl of Granard, etc., 4th Baronet of Castle Forbes |
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William Forbes d. 1730 13th Lord Forbes 1716–1730 | | James Forbes 1689–1761 15th Lord Forbes 1734–1761 | | Mary Forbes | | John Forbes d. 1715 | | | Alexander Forbes 1678–1762 4th Lord Forbes of Pitsligo 1691–1748 | | William Forbes | | Alexander Forbes, 2nd Baronet d. before 1755 2nd Baronet of Foveran | | Samuel Forbes, of Knaperna | | Arthur Forbes 1709–1773 4th Baronet of Craigievar and Fintray c. 1730–1773 | | George Forbes 1710–1769 4th Earl of Granard, etc., 5th Baronet of Castle Forbes |
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| | | | | | | | | | | | | | | | | | | | | | | Lordship Forbes of Pitsligo attainted, 1748 | | | | | | | | | | | | | | | | | | | | | | | | |
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Francis Forbes 1721–1734 14th Lord Forbes 1730–1734 | | James Forbes c. 1725–1804 16th Lord Forbes 1761–1804 | | William Forbes d. 1743 5th Baronet of Monymusk 1715–1743 | | Christian Forbes 1705–1789 | | | | | | Forbes Baronets of Newe in the County of Aberdeen Charles Forbes 1774–1849 1st Baronet of Newe 1823–1849 | | | | | | John Forbes d. c. 1760 3rd Baronet of Knaperna | | | | | | | George Forbes 1740–1780 5th Earl of Granard, etc., 6th Baronet of Castle Forbes |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Baronetcy of Foveran/Knaperna dormant, c. 1760 | | | | | | | | | | |
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| | | | James Ochoncar Forbes 1765–1843 17th Lord Forbes 1804–1843 | | | | | | William Forbes 1739–1806 6th Baronet of Monymusk, and later Pitsligo 1743–1806 | | | | | | | | | | | | | | | | | | William Forbes 1755–1816 5th Baronet of Craigievar and Fintray 1773–1816 | | George Forbes 1760–1837 6th Earl of Granard, etc., 1st Baron Granard, 7th Baronet of Castle Forbes |
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| | | | Walter Gammell Forbes 1798–1868 18th Lord Forbes 1843–1868 | | Charlotte Elizabeth | | | William Forbes 1773–1828 7th Baronet of Monymusk 1806–1828 [m. Williamina, daughter of Sir John Stuart/Belshes/Belshes-Wishart (3rd Baronet (S. 1707) of Fettercairn co. Kincardine] | | | | | | | | | | Arthur Forbes, 6th Baronet 1784–1823 6th Baronet of Craigievar and Fintray 1816–1823 | | | | | | | | John Forbes, 7th Baronet 1785–1846 7th Baronet of Craigievar and Fintray 1823–1846 | | George Forbes 1785–1836 styled Viscount Forbes |
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| | | | | | | | | John Stuart Hepburn Forbes 1804–1866 8th Baronet of Monymusk, and later of Invermay and Balmanno 1828–1866 [Inherited Invermay and Balmanno as heir and cousin of Alexander Hepburn-Murray-Belshes d. 1864] | | Charles Hay Forbes 1806–1859 | | | | | | | | | | William Forbes-Sempill 1836–1905 17th Lord Sempill 1884–1905 8th Baronet of Craigievar and Fintray 1846–1905 (married Carlone Louisa, daughter of Charles Forbes, 3rd Baronet of Newe) | | | | | | James Ochoncar Forbes 1837–1900 | | George Arthur Hastings Forbes 1833–1889 7th Earl of Granard, etc., 2nd Baron Granard, 8th Baronet of Castle Forbes |
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Horace Courtenay Gammell Forbes 1829–1914 19th Lord Forbes 1868–1914 | | Atholl Monson Forbes 1841–1916 20th Lord Forbes 1914–1916 | | | | | | William Forbes 1835–1906 9th Baronet of Monymusk, Invermay, and Balmanno 1866–1906 | | | | | | John Forbes-Sempill 1863–1934 18th Lord Sempill, 9th Baronet of Craigievar and Fintray 1905–1934 | | Arthur Lionel Ochoncar Forbes-Sempill 1877–1962 | | James Ochoncar Forbes 1867–1945 | | | | | | Bernard Arthur William Patrick Hastings Forbes 1874–1948 8th Earl of Granard, etc., 3rd Baron Granard, 9th Baronet of Castle Forbes |
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| | | | Atholl Laurence Cunyngham 1882–1953 21st Lord Forbes 1916–1953 | | | | | | Charles Hay Hepburn Stuart-Forbes of Pitsligo 1871–1921 10th Baronet of Monymusk, Invermay, and Balmanno 1906–1921 | | William Francis Forbes-Sempill 1893–1965 19th Lord Sempill, 10th Baronet of Craigievar and Fintray 1934–1965 | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | Nigel Ivan Forbes 1918–2013 22nd Lord Forbes 1953–2013 | | | | | | | | | | Ann Forbes-Sempill 1920–1995 20th Lady Sempill | | Ewan Forbes 1912–1991 11th Baronet of Craigievar and Fintray 1965–1991 | | John Alexander Cumnock Forbes 1927–2000 12th Baronet of Craigievar and Fintray 1991–2000 | | Patrick Walter Forbes 1914–1979 | | Arthur Patrick Hastings Forbes 1915–1992 9th Earl of Granard, etc., 4th Baron Granard, 10th Baronet of Castle Forbes | | John Forbes 1920–1982 |
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| | | | Malcolm Nigel Forbes b. 1946 23rd Lord Forbes since 2013 | | | | | | | | | | James Sempill b. 1949 21st Lord Sempill | | | | | | | | | | Andrew Iain Ochoncar Forbes 1945–2003 13th Baronet of Craigievar and Fintray 2000–2003 | | | | | | Peter Arthur Edward Hastings Forbes b. 1957 10th Earl of Granard, etc., 5th Baron Granard, 11th Baronet of Castle Forbes |
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| | | | | | | | | | | | | | | | Francis Henry William Sempill b. 1979 styled Master of Sempill | | | | | | James Patrick Ochoncar Forbes b. 1986 14th Baronet of Craigievar and Fintray since 2003 | | David Ian Ochoncar Forbes b. 1993 Heir presumptive to the Baronetage of Craigievar and Fintray | | | | | | Jonathan Peter Hastings Forbes b. 1981 styled Viscount Forbes |