Ignaz von Seyfried
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Ignaz Xaver Ritter von Seyfried (August 15, 1776 - August 27, 1841), was an Austrian musician, conductor and composer.
Von Seyfried was born in Vienna. 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 and Heinrich Wilhelm Ernst. In 1805, von Seyfried conducted the première of the original version of Beethoven's Fidelio.