Heinrich Sutermeister (12 August 1910 – 16 March 1995)[1] was a Swiss composer, most famous for his opera Romeo und Julia.He wrote some works for the radio, starting with Die schwarze Spinne in 1936, before turning later to television opera.His most successful stage work was Romeo und Julia, premiered in Dresden in 1940 under Karl Böhm.[1] Sutermeister's penultimate stage work, Madame Bovary, first given in Zurich in 1967, is loosely based on Flaubert's novel.For his final opera, he adapted Eugène Ionesco's play Exit the King (Le Roi se meurt).