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.
Karl Seubert Karl Friedrich Otto Seubert (6 April 1851 – 31 January 1942) was a prominent German chemist notable for his work on atomic weights of platinum elements. He was the son of the German botanist Moritz August Seubert and Maria Seubert.