Sir Austen Chamberlain (1863-1937) was the ablest Foreign Secretary of the interwar period, earning the Nobel Peace Prize for the signing of the Locarno Treaties in 1925. As a career politician, he held a variety of government offices, and The Papers of Sir Austen Chamberlain contains political papers that variously document his policies as Chancellor of the Exchequer, Secretary of State for Foreign Affairs and Leader of the House of Commons. These provide insight into the intentions behind his policies, the development of foreign affairs for both the First and Second World Wars, and his role in the wartime coalition government. The papers also include personal correspondence with his family, including his sister and wife, and highlight his close friendship with his stepmother, Mary Endicott.