The Earldom of Temple was created in the Peerage Of Great Britain , 18 October1749 for Hester, 2nd Viscountess Cobham and elder sister of Richard, 1st Viscount Cobham, abovementioned. She had been married in 1710 to Richard Grenville, of Wotton, Buckinghamshire, and at her death 6 October1762 she succeeded by her eldest son Richard, who became 2nd Earl Temple. His nephew George, 3rd Earl Temple (son of his younger brother George Grenville , who served as Prime Minister ) was created Marquess Of Buckingham , 4 December1784 . His son Richard, 2nd Marquess of Buckingham and 4th Earl Temple, was created Duke Of Buckingham And Chandos and '''Earl Temple of Stowe''' in the Peerage Of The United Kingdom4 February1822 , the latter title with a special remainder to allow female descendants to succeed. On the death of the 3rd Duke of Buckingham and Chandos 26 March1889 , the Dukedom and Marquessate became extinct, as did the Earldom of 1749 . The Earldom of 1822 passed to his nephew William Gore-Langton, son of his sister Lady Anna, and the Viscountcy of Cobham to his fourth cousin once removed, the 5th Lord Lyttelton And Westcote , a great-great-grandson of the younger sister of the 1st Viscount. Both these titles remain extant.