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.
Fabian Gottlieb von Osten-Sacken Prince Fabian Gottlieb von der Osten-Sacken (Russian: Фабиан Вильгельмович Остен-Сакен ) (20 October 1752 – 7 September 1837) was a Baltic-German Field Marshal who led the Russian army against the Duchy of Warsaw and later governed Paris during the city's brief occupation by the anti-French coalition.