On 8 July 1740, he married Catherine Conduit •
John Wallop, 2nd Earl of Portsmouth (1742–1797), who succeeded his grandfather as
Earl of Portsmouth • Lady Urania Annabella Wallop, died 17 Dec 1844 • Lady Henrietta Dorothea Wallop, died 10 Jun 1862 •
John Charles Wallop, 3rd Earl of Portsmouth, born 18 Dec 1767, died 14 Jul 1853, married firstly, Hon. Grace Norton, daughter of
Fletcher Norton, 1st Baron Grantley, and Grace Chapple, he married secondly, Mary Anne Hanson, daughter of John Hanson (the marriage was annulled in 1828) • Newton Fellowes, 4th Earl of Portsmouth, born 26 Jun 1772, died 9 Jan 1854, married firstly Frances Sherard, daughter of Reverend Castell Sherard, he married, secondly, Lady Catherine Fortescue, daughter of
Hugh Fortescue, 1st Earl Fortescue and Hester Grenville • Hon.
Henry Wallop (d. 1794), a
Groom of the Bedchamber • Hon. Rev.
Barton Wallop (3 January 1744 – 1 September 1781), married Camilla Powlett Smith in 1771 and had issue, Master of
Magdalene College, Cambridge • Urania Catharine Camilla Wallop, born 23 Nov 1774, died 2 Jan 1815, married Reverend Henry Wake, son of Rev. Dr. Charles Wake and Barbara Beckford, daughter of
William Beckford • Major William Barton Wallop, born 24 Dec 1781, died Dec 1824, married Elizabeth Ward, daughter of Major Ward • Hon. Bennet Wallop (29 January 1745 – 12 February 1815), married and had issue • Hon. Catharine Wallop (3 January 1746 – May 1813), married on 3 October 1770 Lt.-Col. Hon.
Lockhart Gordon, son of
John Gordon, 3rd Earl of Aboyne and had issue • Caroline Gordon, born 1772, died 13 December 1801, married Lt Col. William James, son of Lt Col Charles James and Catherine Napier, daughter of
Sir Gerrard Napier, 5th Baronet • Reverend Lockhart Gordon • Loudon Harcourt Gordon • Hon. Jemima Wallop (b. 14 April 1750) ==Parliamentary career==