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Operas by Ludwig van Beethoven
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Fidelio
Fidelio (; ), originally titled '''''''' (Leonore, or The Triumph of Marital Love''), Op. 72, is the sole opera by German composer Ludwig van Beethoven. The libretto was originally prepared by Joseph Sonnleithner from the French of Jean-Nicolas Bouilly. The opera premiered at Vienna's Theater an der Wien on 20 November 1805. The following year, Beethoven's friend Stephan von Breuning rewrote the libretto, shortening the work from three acts to two. After further work on the libretto by Georg Friedrich Treitschke, a final version was performed at the Kärntnertortheater on 23 May 1814. As these