Richmond had fourteen children:
Lady Mary Lennox (15 August 1790 – 7 December 1847), married Sir Charles Fitzroy and had issue.

Charles Gordon-Lennox, 5th Duke of Richmond (3 August 1791 – 21 October 1860).

Lt.-Col.
Lord John George Lennox (3 October 1793 – 10 November 1873), married Louisa Rodney and had issue.

Lady Sarah Lennox (c. 1794 – 8 September 1873), married Peregrine Maitland.

Lady Georgiana Lennox (30 September 1795 – 15 December 1891), married William FitzGerald-de Ros, 23rd Baron de Ros, and had issue.

Lord Henry Adam Lennox (6 September 1797 – 1812), fell overboard from HMS Blake and drowned.

Lord William Lennox (20 September 1799 – 18 February 1881), married first Mary Ann Paton and second Ellen Smith; had issue by the latter.

Lady Jane Lennox (c. 1800 – 27 March 1861), married Laurence Peel and had issue.

Captain Lord Frederick Lennox (24 January 1801 – 25 October 1829).

Lord Sussex Lennox (11 June 1802 – 12 April 1874), married Hon.
Mary Lawless and had issue.

Lady Louisa Maddelena Lennox (2 October 1803 – 2 March 1900), married Rt.
Hon.
William Tighe, died without issue.

Lady Charlotte Lennox (c. 1804 – 20 August 1833), married Maurice Berkeley, 1st Baron FitzHardinge of Bristol, and had issue.

Lt.-Col.
Lord Arthur Lennox (2 October 1806 – 15 January 1864), married Adelaide Campbell and had issue.

Lady Sophia Georgiana Lennox (21 July 1809 – 17 January 1902), married Lord Thomas Cecil, died without issue.
Richmond had fourteen children:
Lady Mary Lennox (15 August 1790 – 7 December 1847), married Sir Charles Fitzroy and had issue.
Charles Gordon-Lennox, 5th Duke of Richmond (3 August 1791 – 21 October 1860).
Lt.-Col. Lord John George Lennox (3 October 1793 – 10 November 1873), married Louisa Rodney and had issue.
Lady Sarah Lennox (c. 1794 – 8 September 1873), married Peregrine Maitland.
Lady Georgiana Lennox (30 September 1795 – 15 December 1891), married William FitzGerald-de Ros, 23rd Baron de Ros, and had issue.
Lord Henry Adam Lennox (6 September 1797 – 1812), fell overboard from HMS Blake and drowned.
Lord William Lennox (20 September 1799 – 18 February 1881), married first Mary Ann Paton and second Ellen Smith; had issue by the latter.
Lady Jane Lennox (c. 1800 – 27 March 1861), married Laurence Peel and had issue.
Captain Lord Frederick Lennox (24 January 1801 – 25 October 1829).
Lord Sussex Lennox (11 June 1802 – 12 April 1874), married Hon. Mary Lawless and had issue.
Lady Louisa Maddelena Lennox (2 October 1803 – 2 March 1900), married Rt. Hon. William Tighe, died without issue.
Lady Charlotte Lennox (c. 1804 – 20 August 1833), married Maurice Berkeley, 1st Baron FitzHardinge of Bristol, and had issue.
Lt.-Col. Lord Arthur Lennox (2 October 1806 – 15 January 1864), married Adelaide Campbell and had issue.
Lady Sophia Georgiana Lennox (21 July 1809 – 17 January 1902), married Lord Thomas Cecil, died without issue.
Charles Lennox, 4th Duke of Richmond