Gustav III(January 13, 1746 - March 16, 1792) was king of Sweden and is known for putting more efforts into theater than war. He was shot at a masquerade at Stockholm Royal Castle on March 18, 1792, but lived until March 29, 1792). The assassination became the basis of Giuseppe Verdi's 1859 opera Un Ballo in Maschera.
See also Swedish monarchs.