Anthony Frederick Blunt (26 September 1907, Bournemouth, Hampshire – 26 March 1983, Westminster, London), known as Sir Anthony Blunt, a Knight Commander of Victorian Order between 1956 and 1979, [an] art historian, Professor of the History of Art, University of London and director of the Courtauld Institute of Art, London (1947-74). Blunt was an acclaimed art critic and the Fourth Man of the Cambridge Five, a group of traitors and spies
working for the Soviet Union from some time in the 1930s to the early 1950s.