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Robert III
c. 1337–1406 King of Scotland |
Lord Montgomerie, 1448 | | | | | | | | | | | | | | | | | |
Alexander Montgomerie
d. 1470 1st Lord Montgomerie | | | | | | | | | | James Kennedy Younger of Dunure | | Mary Stewart |
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Lord Kennedy, 1457 | | | | | |
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Alexander Montgomerie 1404–1452 styled Master of Montgomerie | | Elizabeth | | | | | | |
Gilbert Kennedy
c. 1406 – c. 1480 1st Lord Kennedy | |
James Kennedy
c. 1408–1465
Archbishop of St Andrews |
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Alexander Montgomerie
d.
c. 1483 2nd Lord Montgomerie | | Catherine | |
Colin Campbell
c. 1433–1493 1st
Earl of Argyll | | |
John Kennedy 1454–1508 2nd Lord Kennedy |
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Earl of Eglinton, 1506 | | | | | | | | | | | |
Earl of Cassilis, 1234 |
Hugh Montgomerie
c. 1460–1545 1st Earl of Eglinton, 3rd Lord Montgomerie | | Helen | |
Archibald Campbell
d. 1513 2nd
Earl of Argyll | |
David Kennedy After 1463–1513 1st Earl of Cassilis, 3rd Lord Kennedy |
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John Montgomerie
d. 1520 | | | | | | Isabel | |
Gilbert Kennedy 1494–1527 2nd Earl of Cassilis, 4th Lord Kennedy |
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Hugh Montgomerie
d. 1546 2nd Earl of Eglinton, 4th Lord Montgomerie | | | | | | | | | |
Gilbert Kennedy 1515–1558 3rd Earl of Cassilis, 5th Lord Kennedy |
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Hugh Montgomerie
c. 1531–1585 3rd Earl of Eglinton, 5th Lord Montgomerie | | | | | | | | | |
Gilbert Kennedy
c. 1541–1576 4th Earl of Cassilis, 6th Lord Kennedy | | | | | |
Thomas Kennedy
c. 1549–1602 styled Master of Cassilis |
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Hugh Montgomerie 1563–1586 4th Earl of Eglinton, 6th Lord Montgomerie | | Margaret | |
Robert Seton 1553–1603 1st
Earl of Winton | |
John Kennedy 1575–1615 5th Earl of Cassilis, 7th Lord Kennedy | |
Hew Kennedy styled Master of Cassilis | | Alexander Kennedy
d. 1652 |
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Hugh Montgomerie
d. 1612 5th Earl of Eglinton, 7th Lord Montgomerie | |
Alexander Montgomerie 1588–1661 6th Earl of Eglinton, 8th Lord Montgomerie | | | | | |
John Kennedy
d. 1668 6th Earl of Cassilis, 8th Lord Kennedy | | | | | | John Kennedy
d. 1665 | | Alexander Kennedy
d. 1698 |
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Hugh Montgomerie 1613–1669 7th Earl of Eglinton, 9th Lord Montgomerie | | | | | |
John Kennedy 1653–1701 7th Earl of Cassilis, 9th Lord Kennedy | | | | | | | | | | | | | | |
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Kennedy Baronet of Culzean, in the County of Ayr, 1682 | | | | | | | | | |
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Alexander Montgomerie
d. 1701 8th Earl of Eglinton, 10th Lord Montgomerie | | | | | | John Kennedy
c. 1672–1700 styled Lord Kennedy | | Archibald Kennedy
d. 1710 1st Kennedy Baronet of Culzean | | | | | | | | | |
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Alexander Seton Montgomerie
c. 1660–1729 9th Earl of Eglinton, 11th Lord Montgomerie | |
Susanna Montgomerie 1690–1780 | |
John Kennedy 1700–1759 8th Earl of Cassilis, 10th Lord Kennedy | |
John Kennedy
d. 1742 2nd Kennedy Baronet of Culzean | | | | | | Archibald Kennedy 1685–1763 |
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Alexander Montgomerie 1723–1769 10th Earl of Eglinton, 12th Lord Montgomerie | |
Archibald Montgomerie 1726–1796 11th Earl of Eglinton, 13th Lord Montgomerie | | | | | |
John Kennedy
d. 1744 3rd Kennedy Baronet of Culzean | |
Thomas Kennedy
d. 1775 9th Earl of Cassilis, 11th Lord Kennedy, 4th Kennedy Baronet of Culzean | |
David Kennedy before 1734–1792 10th Earl of Cassilis, 12th Lord Kennedy, 5th Kennedy Baronet of Culzean | |
Archibald Kennedy 1720–1794 11th Earl of Cassilis, 13th Lord Kennedy |
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Baron Ailsa, of Ailsa in the County of Ayr, 1806
Marquess of Ailsa, 1831 |
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Archibald William Montgomerie 1739–1819 12th Earl of Eglinton, 13th Lord Montgomerie, 1st Baron Ardrossan | | | | | | | | | | | | | | | | | |
Archibald Kennedy 1770–1846 1st Marquess of Ailsa and Baron Ailsa, 12th Earl of Cassilis, 14th Lord Kennedy |
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| | | | Archibald Montgomerie 1773–1814 styled Lord Montgomerie | | | | | | | | | | | | | | | | | |
Archibald Kennedy IV 1794–1832 styled Earl of Cassilis |
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Earl of Winton (2nd creation) and
Baron Seton and Tranent, 1859 | | | | | | | | | | | | | | | | | | | | | |
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Archibald William Montgomerie 1812–1861 13th Earl of Eglinton, 1st Earl of Winton and Baron Seton and Tranent, 14th Lord Montgomerie | | | | | | | | | | | | | | | | | |
Archibald Kennedy 1816–1870 2nd Marquess of Ailsa and Baron Ailsa, 13th Earl of Cassilis, 15th Lord Kennedy |
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Archibald William Montgomerie 1841–1892 14th Earl of Eglinton, 2nd Earl of Winton and Baron Seton and Tranent, 15th Lord Montgomerie | |
George Arnulph Montgomerie 1848–1919 15th Earl of Eglinton, 3rd Earl of Winton and Baron Seton and Tranent, 16th Lord Montgomerie | | | | | | | | | | | | | |
Archibald Kennedy 1847–1838 3rd Marquess of Ailsa and Baron Ailsa, 14th Earl of Cassilis, 16th Lord Kennedy |
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Archibald Seton Montgomerie 1880–1945 16th Earl of Eglinton, 4th Earl of Winton and Baron Seton and Tranent, 17th Lord Montgomerie | | | | | |
Archibald Kennedy 1872–1943 4th Marquess of Ailsa and Baron Ailsa, 15th Earl of Cassilis, 17th Lord Kennedy | |
Charles Kennedy 1875–1956 5th Marquess of Ailsa and Baron Ailsa, 16th Earl of Cassilis, 18th Lord Kennedy | |
Angus Kennedy 1882–1957 6th Marquess of Ailsa and Baron Ailsa, 17th Earl of Cassilis, 19th Lord Kennedy |
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Archibald William Alexander Montgomerie 1914–1966 17th Earl of Eglinton, 5th Earl of Winton and Baron Seton and Tranent, 18th Lord Montgomerie | | | | | | | | | | | | | |
Archibald David Kennedy 1925–1997 7th Marquess of Ailsa and Baron Ailsa, 18th Earl of Cassilis, 20th Lord Kennedy |
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Archibald George Montgomerie 1939–2018 18th Earl of Eglinton, 6th Earl of Winton and Baron Seton and Tranent, 19th Lord Montgomerie | | | | | | | | | | | | | | | | | |
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Hugh Archibald William Montgomerie
b. 1966 19th Earl of Eglinton, 7th Earl of Winton and Baron Seton and Tranent, 20th Lord Montgomerie | | | | | | | | | |
Archibald Angus "Charles" Kennedy 1956–2015 8th Marquess of Ailsa and Baron Ailsa, 19th Earl of Cassilis, 21st Lord Kennedy | |
David Thomas Kennedy
b. 1958 9th Marquess of Ailsa and Baron Ailsa, 20th Earl of Cassilis, 22nd Lord Kennedy |
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Rhuridh Seton Archibald Montgomerie
b. 2007 styled Lord Montgomerie | | | | | | | | | | | | | | Archibald David Kennedy
b. 1995 styled Earl of Cassilis |
| | | | | | | | Heir apparent to the Earldom of Eglinton | | | | | | | | | | | | | | Heir apparent to the Marquessate of Ailsa |