What was Ignaz von Seyfried and Franz von Suppé's nationality?
Franz von Suppé Franz von Suppé or Francesco Suppé Demelli (18 April 181921 May 1895) was an Austrian composer of light operas and other theatre music. He came from the Kingdom of Dalmatia, Austro-Hungarian Empire (now part of Croatia). A composer and conductor of the Romantic period, he is notable for his four dozen operettas.
Franz Wilhelm Schweigger-Seidel Franz Wilhelm Schweigger-Seidel (16 October 1795 – 5 June 1838); born as Franz Wilhelm Seidel was a German physician and chemist born in Weißenfels. He was the father of physiologist Franz Schweigger-Seidel (1834–1871).