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Max Rudolf Frisch (German: [maks ˈfʁɪʃ] ; 15 May 1911 – 4 April 1991) was a Swiss playwright and novelist. Frisch's works focused on problems of identity, individuality, responsibility, morality, and political commitment. The use of irony is a significant feature of his post-war output. Frisch was one of the founders of Gruppe Olten. He was awarded the 1965 Jerusalem Prize, the 1973 Grand Schiller Prize, and the 1986 Neustadt International Prize for Literature.