Alec Douglas-Home

Alexander Frederick Douglas-Home, Baron Home of the Hirsel (; 2 July 1903 – 9 October 1995), known as Lord Dunglass from 1918 to 1951 and the Earl of Home from 1951 to 1963, was a British Conservative politician and Prime Minister of the United Kingdom from 1963 to 1964. He was the last prime minister to hold office while being a member of the House of Lords, before renouncing his peerage and taking up a seat in the House of Commons for the remainder of his premiership. His reputation, however, rests more on his seven years over two stints as Foreign Secretary than on his brief premiership.

Alec Douglas-Home entered the House of Commons in 1931 and, within six years, became a parliamentary aide to Prime Minister Neville Chamberlain, witnessing the government's efforts to maintain peace through appeasement prior to the outbreak of the Second World War. In 1940, he was diagnosed with spinal tuberculosis, which forced him to suspend his political activities for nearly two years. After recovering, he returned to politics, although he lost his parliamentary seat in the 1945 general election before regaining it in 1950. The following year, he succeeded to the earldom of Home upon the death of his father and consequently moved to the House of Lords. During the premierships of Winston Churchill, Anthony Eden, and Harold Macmillan, he held a number of senior offices, including Leader of the House of Lords and Foreign Secretary. As Foreign Secretary from 1960 to 1963, he supported the United States during the Cuban Missile Crisis and signed the Partial Nuclear Test Ban Treaty on behalf of the United Kingdom in 1963.

In October 1963, Macmillan was taken ill and resigned as prime minister.