James Gascoyne-Cecil, 2nd Marquess of Salisbury James Gascoyne-Cecil, 2nd Marquess of Salisbury James Brownlow William Gascoyne-Cecil, 2nd Marquess of Salisbury, (17 April 1791 – 12 April 1868), styled Viscount Cranborne until 1823, was a British Conservative politician. He held office under the Earl of Derby as Lord Privy Seal in 1852 and Lord President of the Council between 1858 and 1859. He was the father of Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, three times Prime Minister of the United Kingdom, and grandfather of Arthur Balfour, who also served as Prime Minister. Salisbury was the son of James Cecil, 1st Marquess of Salisbury, and Lady Emily Mary
Records of Prime Ministers of the United Kingdom when he succeeded his father as the 3rd Duke of Grafton on 6 May 1757, eleven years before his term of office began. The longest service as MP was enjoyed by Sir Winston Churchill, who sat for a total of 63 years and 360 days, for five successive seats, between 1 October 1900 and retiring on 25 September 1964, excluding two intervals out of parliament (in 1908 and 1922–24), retiring as Father of the House. He was in the Commons throughout both his terms as Prime Minister, and his service covered the terms of eleven other Prime Ministers, from Lord