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| | | | Lord Roxburghe, 1600 Earl of Roxburghe and Lord Ker of Cessford and Cavertoun, 1616 | | | | | | | | | |
| | | | Robert Ker (1570–1650) 1st Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun | | | | | | Margaret Ker |
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| | | | | | | | | | | | | | | Lord Bellenden, of Broughton, 1661 |
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William Ker (d. 1643) styled Lord Ker | | Lady Jean Ker | | Henry Ker (d. 1643) styled Lord Ker | | William Bellenden (d. 1671) 1st Lord Bellenden |
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| | | | William Drummond (Ker) (1622–1675) 2nd Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun | | Jean Ker | | | | | | Margaret Ker (d. 1681) | | James Innes 3rd Innes Baronet |
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| | | | Robert Ker (1658–1682) 3rd Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun | | John Ker (Bellenden) (d. 1707) 2nd Lord Bellenden | | | | | | | | | | Henry Innes (d. 1721) 4th Innes Baronet |
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| | | | | Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, Viscount Broxmouth, 1707 | | | | | | | | | | | | | | | | | | | |
Robert Ker (c. 1677–1696) 4th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun | | John Ker (1680–1741) 1st Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 5th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun | | John Bellenden (1685–1741) 3rd Lord Bellenden | | | | | | William Bellenden (1702–1758) | | Henry Innes (d. 1762) 5th Innes Baronet |
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| | | | Earl Ker, of Wakefield in the County of York, and Baron Ker, of Wakefield in the County of York, 1722 | | | | | | | | | | | | | | | | | Duke of Roxburghe, 1707 (succession decided, 1812) |
| | | | Robert Ker (c. 1709–1755) 2nd Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 6th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 1st Earl Ker and Baron Ker | | Ker Bellenden (1725–1753) 4th Lord Bellenden | | Robert Bellenden (1734–1797) 6th Lord Bellenden | | William Bellenden-Ker (1728–1805) 4th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 8th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun 7th Lord Bellenden | | James Innes-Ker (1736–1823) 5th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 9th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun 6th Innes-Ker Baronet |
| | | | | | | | | | | | | | | | | | Lordship Bellenden extinct, 1805 | | | | | |
| | | | | | | | | | | | | | | | | | | | | | Earl Innes, 1837 |
| | | | John Ker (1740–1804) 3rd Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 7th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 2nd Earl Ker and Baron Ker | | John Ker Bellenden (1751–1796) 5th Lord Bellenden | | | | | | | | | | James Henry Robert Innes-Ker (1816–1879) 6th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 10th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 1st Earl Innes 7th Innes-Ker Baronet |
| | | | Dukedom dormant, Earldom Ker and Barony Ker extinct, 1804 | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | James Henry Robert Innes-Ker (1839–1892) 7th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 11th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 2nd Earl Innes 8th Innes-Ker Baronet |
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| | | | | | | | | | | | | | | | | | | | Henry John Innes-Ker (1876–1932) 8th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 12th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 3rd Earl Innes 9th Innes-Ker Baronet |
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| | | | | | | | | | | | | | | | | | | | George Victor Robert John Innes-Ker (1913–1974) 9th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, and Viscount Broxmouth, 13th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 4th Earl Innes 10th Innes-Ker Baronet |
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| | | | | | | | | | | | | | | | | | | | Guy David Innes-Ker (1954–2019) 10th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, Viscount Broxmouth, 14th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 5th Earl Innes 11th Innes-Ker Baronet |
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| | | | | | | | | | | | | | | | | | | | Charles Robert George Innes-Ker (b. 1981) 11th Duke of Roxburghe, Marquess of Bowmont and Cessford, Earl of Kelso, Viscount Broxmouth, 15th Earl of Roxburghe, Lord Roxburghe, and Lord Ker of Cessford and Cavertoun, 6th Earl Innes 12th Innes-Ker Baronet |
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| | | | | | | | | | | | | | | | | | | | Frederick Charles Ian Innes-Ker b. 2024 styled Marquess of Bowmont and Cessford |
| | | | | | | | | | | | | | | | | | | | Heir apparent to the Dukedom of Roxburghe |