Maurice Harold Macmillan, 1st Earl of Stockton, a Conservative politician, became Prime Minster of the United Kingdom on 10 January 1957. Born in Chelsea, London, Macmillan served in the Grenadier Guards during the First World War and was wounded three times, the most severe during the Battle of the Somme in 1916. In 1924 Macmillan entered parliament for the constituency of Stockton-on-Tees. Rising to high office during the Second World War, under Prime Minister Winston Churchill, he served as Foreign Secretary and then Chancellor of the Exchequer under Churchill’s successor, Sir Anthony Eden. Macmillan succeeded Eden as Prime Minister after Eden resigned. After his own resignation Macmillan lived out a long retirement as an elder Statesman.