The Dukedoms of Richmond (in the peerage of England) and of Lennox (in the peerage of Scotland) have usually been held by the same person since 1623. In 1675, King Charles II created his illegitimate son Charles Lennox Duke of Richmond (created on 9 August 1675) and Duke of Lennox (created on 9 September 1675), and the two Dukedoms have since been held concurrently by Lennox's descendants. Since 1734 he has also held the Dukedom of Aubigny (in the peerage of France). Since 1876 he has also held the Dukedom of Gordon (in the peerage of the United Kingdom).
| Created by Charles II of England | |||||
|---|---|---|---|---|---|
| Name | Period | Duchess | Notes | Titles | |
| 1 | Charles Lennox 1672-1723 | 1675-1723 | Lady Anne Brudenell | Youngest illegitimate son of Charles II (by his mistress Louise de Kérouaille) | Duke of Richmond Duke of Lennox Earl of March Earl of Darnley Baron of Settrington Lord of Torboulton |
| 2 | Charles Lennox 1701-1750 | 1723-1750 | Lady Sarah Cadogan | Son of the preceding. Also 2nd Duc d'Aubigny, having inherited that French title in 1734 on the death of his paternal grandmother Louise de Kérouaille | |
| 3 | Charles Lennox 1735-1806 | 1750-1806 | Lady Mary Bruce | Son of the preceding. Also 3rd Duc d'Aubigny | |
| 4 | Charles Lennox 1764-1819 | 1806-1819 | Lady Charlotte Gordon | Nephew of the preceding. Also 4th Duc d'Aubigny | |
| 5 | Charles Gordon-Lennox 1791-1860 | 1819-1860 | Lady Caroline Paget | Son of the preceding. Also 5th Duc d'Aubigny | |
| 6 | Charles Henry Gordon-Lennox 1818-1903 | 1860-1903 | Lady Frances Greville | Son of the preceding. In 1876 created Duke of Gordon. Also 6th Duc d'Aubigny | Duke of Richmond Duke of Lennox Duke of Gordon Earl of March Earl of Darnley Earl of Kinrara Baron of Settrington Lord of Torboulton |
| 7 | Charles Henry Gordon-Lennox 1845-1928 | 1903-1928 | widowed | Son of the preceding. Also 7th Duc d'Aubigny | |
| 8 | Charles Henry Gordon-Lennox 1870-1935 | 1928-1935 | Hilda Brassey | Son of the preceding. Also 8th Duc d'Aubigny | |
| 9 | Frederick Charles Gordon-Lennox 1904-1989 | 1935-1989 | Elizabeth Hudson | Son of the preceding. Also 9th Duc d'Aubigny | |
| 10 | Charles Henry Gordon-Lennox b. 1929-2017 | 1989-2017 | Susan Grenville-Grey | Son of the preceding. Also 10th Duc d'Aubigny | |
| 11 | Charles Gordon-Lennox b. 1955 | since 2017 | Janet Astor | Son of the preceding. Also 11th Duc d'Aubigny | |