Nils Castegren was born on November 9, 1908 in Botkyrka, Stockholms län, Sweden. He was a composer, known for Det kom en gäst... (1947), Hans officiella fästmö (1944) and Hans Majestät får vänta (1945). He died on November 5, 1999 in Lidingö, Stockholms län, Sweden.