Robert Arthur James Gascoyne-Cecil, 5th Marquess of Salisbury, KG PC FRS DL (27 August 1893 23 February 1972), known as Viscount Cranborne from 1903 to 1947, was a British Conservative politician.Nicknamed Bobbety , Salisbury was the eldest son of James Gascoyne-Cecil, 4th Marquess of Salisbury, by his wife Lady Cicely, daughter of Arthur Gore, 5th Earl of Arran, and the grandson of Prime Minister Robert Gascoyne-Cecil, 3rd Marquess of Salisbury. He was educated at Eton and Christ Church, Oxford, receiving an honorary Doctorate of Civil Laws 1951.During the 1950s, when his party returned to office, successively, he served Churchill, Anthony Eden, and Harold Macmillan as Lord Privy Seal from 1951 to 1952; Leader of the House of Lords from 1951 to 1957; Secretary of State for Commonwealth Relations in 1952 and Lord President of the Council from December 1952 to 1957. During the period of the coronation of Elizabeth II, he was appointed Acting Foreign Secretary, as Eden was then seriously ill after a series of botched operations on his bile duct.