Born 1823 Died 1889
Richard Grenville, the only son of the 2nd Duke, was educated at Eton and Christ Church, Oxford, and, as Marquess of Chandos, represented the borough of Buckingham in parliament from 1846 to 1857. He was chairman of the London and North-Western railway from 1853 to 1861. After succeeding to the dukedom he became Lord President of the Council, and subsequently Secretary for the Colonies in the Conservative government of 1866-1868. From 1875 to 1880 he was governor of Madras, and in 1886 was chosen chairman of committees in the House of Lords.
He was twice married and left three daughters. As he left no son the dukedom became extinct on his death; but the Scottish barony of Kinloss (to which he established his title in 1868) passed to his eldest daughter, Mary, the wife of Captain L. F. H. C. Morgan; the earldom of Temple to his nephew, William Stephen Gore-Langton; and the viscounty of Cobham to his kinsman, Charles George, 5th Baron Lyttelton. His widow married the 1st Earl Egerton of Tatton in 1894.
Extracted from the entry for BUCKINGHAM , EARLS, MARQUESSES AND DUKES OF in the 1911 Encyclopedia Britannica, the text of which lies within the public domain.