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His grandson, the fourth Earl, Viscount Jocelyn's son served in the second Conservative administration of Benjamin Disraeli as a Lord-in-Waiting (government whip in the House of Lords) from 1874 to 1880.
On 11 December 1752 he married Anne Hamilton, daughter of James Hamilton, 1st Earl of Clanbrassill and his wife Henrietta Bentinck, daughter of William Bentinck, 1st Earl of Portland.
He served under Sir Robert Peel as Joint Secretary to the Board of Control between 1845 and 1846.