Who dated Max Frisch?

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.

Ingeborg Bachmann (Austrian German: [ˈɪŋəbɔrɡ ˈbaxman]; 25 June 1926 – 17 October 1973) was an Austrian poet and author. She is regarded as one of the major voices of German-language literature in the 20th century. In 1963, she was nominated for the Nobel Prize in Literature by German philologist Harald Patzer.