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.
Emmerich Joseph de Dalberg Emmerich Joseph Wolfgang Heribert de Dalberg, 1st Duke of Dalberg (31 May 1773 – 27 April 1833) was a German diplomat who was elevated to the French nobility in the Napoleonic era and who held senior government positions during the Bourbon Restoration.