What was Ignaz von Seyfried and Franz von Suppé's nationality?
Ignaz von Seyfried Ignaz Joseph Ritter von Seyfried (15 August 1776 – 27 August 1841) was an Austrian musician, conductor and composer. He was born and died in Vienna. According to a statement in his handwritten memoirs he was a pupil of both Wolfgang Amadeus Mozart and Johann Albrechtsberger. He published Albrechtsberger's complete written works after his death. His own pupils included Franz von Suppé, Heinrich Wilhelm Ernst, Antonio Casimir Cartellieri, Joseph Fischhof and Eduard Marxsen.
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.