| | | | | | | | Edward Montagu c. 1485–1557 |
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| | | | | | | | Edward Montagu c. 1530–1602 |
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| | | | Baron Montagu of Boughton, 1621 | | | | | | Viscount Mandeville and Baron Montagu of Kimbolton, of Kimbolton in the County of Huntingdon, 1620 Earl of Manchester, 1626 | | | | | | | | | | | | | | | | | |
| | | | Edward Montagu c. 1562–1644 1st Baron Montagu of Boughton | | | | | | Henry Montagu c. 1563–1642 1st Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | | | | | | | | | Sidney Montagu c. 1572–1644 |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earl of Sandwich, Viscount Hinchingbrooke, Baron Montagu of St Neots, of St Neots in the County of Huntingdon, 1660 |
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| | | | Edward Montagu 1616–1684 2nd Baron Montagu of Boughton | | | | | | Edward Montagu 1602–1671 2nd Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | George Montagu 1622–1681 | | | | | | Edward Montagu 1625–1672 1st Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
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| | | | | Earl of Montagu and Viscount Monthermer, 1689 Duke of Montagu and Marquess of Monthermer (1st creation), 1705 | | | | | | | | | | | | | | | | | | | | Baron Halifax, 1700 Earl of Halifax (2nd creation) and Viscount Sunbury (2nd creation), 1714 | | | | | |
Edward Montagu c. 1636–1665 | | Ralph Montagu 1638–1709 1st Duke of Montagu, Earl of Montagu, and Viscount Monthermer, 3rd Baron Montagu of Boughton | | | | | | Robert Montagu 1634–1683 3rd Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | Edward Montagu 1649–1690 | | Charles Montagu 1661–1715 1st Earl of Halifax and Viscount Sunbury, 1st Baron Halifax | | Edward Montagu 1647/48–1688 2nd Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
| | | | | | | | | | | | | | | | | | | | | | | | | | | Earldom of Halifax (2nd creation) and subsidiary titles extinct, 1715 | | | | |
| | | | | | | | | | | | | Duke of Manchester, 1719 | | | | | | Earl of Halifax (3rd creation) and subsidiary titles (3rd creation), 1714 | | | | | | | | | |
| | | | John Montagu 1690–1749 2nd Duke of Montagu, Earl of Montagu, and Viscount Monthermer, 4th Baron Montagu of Boughton | | | | | | Charles Edward Montagu c. 1662–1722 1st Duke of Manchester, 4th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | George Montagu 1685–1739 1st Earl of Halifax and Viscount Sunbury, 2nd Baron Halifax | | | | | | Edward Montagu 1670–1729 3rd Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
| | | | Dukedom of Montagu (1st creation) and subsidiary titles extinct, 1749 | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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Duke of Montagu (2nd creation) and Marquess of Monthermer (2nd creation), 1766 Baron Montagu of Boughton (3rd creation), 1776 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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George Brudenell 1712–1790 Earl of Cardigan Duke of Montagu, Marquess of Monthermer, 1st Baron Montagu of Boughton | | Mary Montagu c. 1711–1775 | | Lady Isabella Montagu d. 1786 | | William Montagu 1700–1739 2nd Duke of Manchester, 5th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Robert Montagu c. 1710–1762 3rd Duke of Manchester, 6th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | George Montagu-Dunk 1716–1771 2nd Earl of Halifax and Viscount Sunbury, 3rd Baron Halifax | | Edward Montagu 1692–1722 styled Viscount Hinchingbrooke | | John Montagu 1718–1792 4th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots 🥪 |
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Dukedom of Montagu (2nd creation) and subsidiary titles extinct, 1790 | | | | | | | | | | | | | | | | | | | | | Earldom of Halifax (3rd creation) and subsidiary titles extinct, 1771 | | | | | | | | | |
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| | | | Baron Montagu of Boughton (2nd creation), 1762 | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | John Montagu 1735–1770 Baron Montagu of Boughton, styled Marquess of Monthermer | | Elizabeth Scott 1743–1827 | | | | | | George Montagu 1737–1788 4th Duke of Manchester, 7th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Lady Elizabeth Montague-Dunk d. 1768 | | | | | | John Montagu 1744–1814 5th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
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| | | | Baron Montagu of Boughton (2nd creation) extinct, 1770 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | | | | | | Henry Montagu-Scott 1776–1845 2nd Baron Montagu of Boughton | | George Montagu 1763–1772 styled Viscount Mandeville | | William Montagu 1771–1843 5th Duke of Manchester, 8th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | John George Montagu 1767–1790 styled Viscount Hinchinbroke | | George John Montagu 1773–1818 6th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
| | | | | | | | Baron Montagu of Boughton (3rd creation) extinct, 1845 | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | George Montagu 1799–1855 6th Duke of Manchester, 9th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | | | | | | | | |
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| | | | | | | | | | | | William Drogo Montagu 1823–1890 7th Duke of Manchester, 10th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Lord Robert Montagu 1825–1902 | | | | | | | | | | John William Montagu 1811–1884 7th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
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| | | | | | | | | | | | George Victor Drogo Montagu 1853–1892 8th Duke of Manchester, 11th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Robert Acheson Cromie Montagu 1854–1931 | | | | | | Edward George Henry Montagu 1839–1916 8th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots | | Victor Alexander Montagu 1841–1915 |
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| | | | | | | | | | | | William Angus Drogo Montagu 1877–1947 9th Duke of Manchester, 12th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | John Michael Cromie Montagu 1881–1966 | | | | | | | | | | George Charles Montagu 1874–1962 9th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
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| | | | | | | | | | | | Alexander George Francis Drogo Montagu 1902–1977 10th Duke of Manchester, 13th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Robert Alexander Montagu 1917–1996 | | | | | | | | | | Alexander Victor Edward Paulet Montagu 1906–1995 10th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
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| | | | | | | | Sidney Arthur Robin George Drogo Montagu 1929–1985 11th Duke of Manchester, 14th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Angus Charles Drogo Montagu 1938–2002 12th Duke of Manchester, 15th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | | | | | | | | | | | | | | John Edward Hollister Montagu b. 1943 11th Earl of Sandwich, Viscount Hinchingbrooke, and Baron Montagu of St Neots |
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| | | | Alexander Charles David Drogo Montagu b. 1962 13th Duke of Manchester, 16th Earl of Manchester, Viscount Mandeville, and Baron Montagu of Kimbolton | | Lord Kimble William Drogo Montagu b. 1964 | | Lady Emma Louise Eveleen Montagu Hodgkinson 1965–2014 | | Michael Anthony Montagu b. 1955 | | | | | | | | | | Luke Timothy Charles Montagu b. 1969 styled Viscount Hinchingbrooke |
| | | | | | | | Heir presumptive to the dukedom of Manchester | | | | | | | | | | | | | | | | | | Heir apparent to the earldom of Sandwich |