| Biography | Richard Austen Butler, Baron Butler of Saffron Walden, who invariably signed his name R. A. Butler and was familiarly known as Rab, was a British Conservative politician. Butler was one of only two British politicians (the other being John Simon, 1st Viscount Simon) to have served in three of the four Great Offices of State (Chancellor of the Exchequer, Home Secretary and Foreign Secretary) but never to have been the Prime Minister, for which he was twice passed over. |