Richard Austen Butler, Baron Butler of Saffron Walden, KG, CH, PC, DL generally known as R. A. Butler and familiarly known from his initials as Rab, was a prominent British Conservative politician. The Times obituary called him "the creator of the modern educational system, the key-figure in the revival of post-war Conservatism, arguably the most successful chancellor since the war and unquestionably a Home Secretary of reforming zeal."