Lady Olivia Tankerville (1830-1922), née Montagu, was the daughter of the 6th Duke of Manchester. On 29 January 1850 she married Charles Augustus Bennet (1810-1899), from 1859 the 6th Earl of Tankerville. The couple had five children. This is their eldest son, Charles Bennet, Lord Ossulston born on 31 December 1850 at 23, Hertford Street, Mayfair. He died of cholera at Abbotabad, Peshawar, India, on 29 June 1879.