Rougemont, Denis de (dənēˈ də rōzhmôNˈ) [key], 1906–85, French philosopher and critic, b. Switzerland. He moved to Paris in 1936 and published numerous articles on existentialism, some of which are collected in Les Personnes du drame (1945; tr. Dramatic Personages, 1964). From 1940 to 1947, Rougemont lectured in the United States, where he wrote La Part du diable [The devil's portion] (1944), about the European crisis of conscience. He also wrote the psychological-historical study L'Amour et l'occident (1939; tr. Love in the Western World, 1956).