Sigurd Christian Jag Erland Vogt von Koch (26 April 1910 – 31 January 2009) was a Swedishcomposer.[1] He wrote symphonies, ballets, an opera, and other compositions, including music for film.
^Sveriges ridderskap och adels kalender 1992 (in Swedish). Stockholm: Riddarhusdirektionen. 1991. p. 310. ISBN91-971722-0-0.