Edward Frederick Lindley Wood, 1st Earl of Halifax, (16 April 1881 – 23 December 1959), known as The Lord Irwin from 1925 until 1934 and as The Viscount Halifax from 1934 until 1944, was one of the most senior British Conservative politicians of the 1930s, during which he held several senior ministerial posts, most notably as Foreign Secretary from 1938 to 1940. As such he is often regarded as one of the architects of the policy of appeasement prior to World War II.