Robert Edward Peter Gascoyne-Cecil, 6th Marquess of Salisbury, styled Viscount Cranborne from 1947 to 1972, was a British landowner and Conservative politician.
Salisbury was the eldest and only surviving son of Robert Gascoyne-Cecil, 5th Marquess of Salisbury, by Elizabeth Vere Cavendish, daughter of Lord Richard Cavendish.
During the Second World War he served in the Grenadier Guards. He was later appointed Military Assistant to Harold Macmillan, then the Resident Minister in North Africa. In 1972 he succeeded his father in the marquessate and entered the House of Lords.
He also succeeded his father as President of the Conservative Monday Club.
He supported the Salisbury Review and was also president of the Anglo-Rhodesian Society and Friends of the Union. 1916-1947: Baron Cecil 1947-1950: Viscount Cranborne 1950-1954: Viscount Cranborne Member of Parliament 1954-1972: Viscount Cranborne 1972-2003: The Most Honourable The Sixth Marquess of Salisbury.
39th United Kingdom Parliament. 40th United Kingdom Parliament]
He took part in the invasion of Normandy in 1944 with the 2nd Battalion and was a member of the first British unit to enter Brussels. He later sat as Conservative Member of Parliament for Bournemouth West from 1950 to 1954.