Brudenell-Bruce was returned to Parliament for
Marlborough in 1832. He was a
Lord of the Bedchamber to
William IV from 1834 to 1835. In 1841 he was sworn of the
Privy Council and appointed
Vice-Chamberlain of the Household under
Sir Robert Peel, a post he held until the government fell in 1846. He returned to the same office in December 1852 in
Lord Aberdeen's coalition government. He continued in the post also when
Lord Palmerston became prime minister in 1855, finally resigning in 1858. He remained MP for Marlborough until 1878, when he succeeded his elder brother in the marquessate and entered the
House of Lords. a post he held until his death two years later.
Family Lord Ailesbury married Hon. Louisa Elizabeth Horsley Beresford (1814–1891), second daughter of
John Beresford, 2nd Baron Decies, on 25 November 1834. They had seven children: • Lady Louisa Caroline Brudenell-Bruce (3 October 1836 - 7 December 1894), married
Sir Henry Meux, 2nd Baronet. • Lady Ernestine Mary Brudenell-Bruce (15 March 1847 - 27 December 1936), married
William Hare, 3rd Earl of Listowel. • George John Brudenell-Bruce (15 May 1839 – 28 May 1868), married Lady Evelyn Mary Craven, daughter of
William Craven, 2nd Earl of Craven and had issue
George Brudenell-Bruce, 4th Marquess of Ailesbury. • James Ernest Brudenell-Bruce (30 June 1840 – 21 June 1876), no issue. •
Henry Augustus Brudenell-Bruce, 5th Marquess of Ailesbury (11 April 1842 – 10 March 1911). • Commodore Lord Robert Thomas Brudenell-Bruce (25 January 1845 – 15 February 1912), married Emma Leigh and had issue. • Major Lord
Charles Frederick Brudenell-Bruce (4 March 1849 – 31 May 1936), married Margaret Renshaw (d. 1913), had one adopted daughter. Lord Ailesbury died at
Tottenham House,
Savernake, Wiltshire, in October 1886, aged 75, and was buried at
Great Bedwyn, Wiltshire. His grandson
George succeeded to the marquessate. The Marchioness of Ailesbury died in October 1891, aged 77, and was also buried at Great Bedwyn. ==References==