Fidelio Fidelio Fidelio (originally titled ; English: "Leonore, or The Triumph of Marital Love"), Op. 72, is Ludwig van Beethoven's only opera. The German libretto was originally prepared by Joseph Sonnleithner from the French of Jean-Nicolas Bouilly, with the work premiering at Vienna's Theater an der Wien on 20 November 1805. The following year, helped shorten 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. By convention, both of the first two versions are referred to as "Leonore". The libretto, with
Italian opera composers of the next generation: Francesco Cavalli and Antonio Cesti. In Polish–Lithuanian Commonwealth a tradition of operatic production began in Warsaw in 1628, with a performance of "Galatea" (composer uncertain), the first Italian opera produced outside Italy. Shortly after this performance, the court produced Francesca Caccini's opera "La liberazione di Ruggiero dall'isola d’Alcina", which she had written for Prince Władysław Vasa three years earlier when he was in Italy. Another first, this is the earliest surviving opera written by a woman. "Gli amori di Aci e Galatea" by Santi Orlandi was also performed in 1628. When Władysław was king (as