In the contentious election of 1831, Beaufort was defeated by Benjamin Hall at Monmouth Boroughs. While Hall's victory was overturned on petition and Beaufort regained the seat, he again lost to Hall in the 1832 election. He was appointed lieutenant-colonel commandant of the Gloucestershire Yeomanry in 1834. In 1835, he successfully contested West Gloucestershire, but left the House when he succeeded as Duke of Beaufort that November. In 1836, he became High Steward of Bristol and was appointed a Knight of the Garter on 11 April 1842.