Renzo De Felice (8 April 1929 – 25 May 1996) was an Italian historian, who specialized in the Fascist era writing - among others - a 6000-page biography of Mussolini (4 volumes, 1965–97). He argued that Mussolini was a revolutionary modernizer in domestic issues, but a pragmatist in foreign policy who continued the Realpolitik policies of liberal Italy, 1861-1922.