On the 15th, Bonaparte issued his proclamation from Schönbrunn, which he made his headquarters. Murat quartered himself in the palace of Archduke Albert; General Hulin, in that of Prince Lobkowitz. It was just at this most unlucky of all possible periods that Beethoven's opera was produced; on November 20, 21 and 22.

Beethoven's friend, Stephan von Breuning, prepared a pretty surprise for him by printing a short complimentary poem and having it distributed in the theatre at the second performance. It is preserved in the "Notizen" (p. 34).[32] Beethoven desired to retain the original title of the opera, "Leonore," and the directors of the theatre have been severely censured from that day to this for persisting in giving and retaining the title "Fidelio"; but unjustly; for, considering the relations in which Paër stood to Baron Braun, it was surely enough to have taken his subject, without stealing his title.

The Life of Ludwig van Beethoven, Volume II (of 3) — Part 56

A young man, educated at the University of Munich, had for some time past been private secretary to the Bavarian ~Chargé des Affaires~ at Salzburg. The approach of the French armies after the fall of Ulm made his position and prospects very uncertain. It was just then that an agent of Baron Braun came thither in search of a young, fresh tenor to succeed Demmer, whose powers were fast yielding to time. The engagement was offered him and thus it came about, that J. A. Röckel, in the Autumn of 1805, became first tenor in the Theater-an-der-Wien. After appearing in divers characters with much success, considering his inexperience, he was offered the part of ~Florestan~ in the contemplated revival of "Fidelio." A conversation with the singer at Bath in April, 1861, is authority for these particulars, and a letter from him dated February 26 of the same year adds more. Röckel wrote:

The Life of Ludwig van Beethoven, Volume II (of 3) — Part 56

It was in December, 1805--the opera house An-der-Wien and both the Court theatres of Vienna having been at that time under the intendance of Baron Braun, the Court Banker--when Mr. Meyer, brother-in-law to Mozart and Regisseur of the opera An-der-Wien, came to fetch me to an evening meeting in the palace of Prince Charles Lichnowsky, the great patron of Beethoven. "Fidelio" was already a month previously performed An-der-Wien--unhappily just after the entrance of the French, when the city was shut against the suburbs. The whole theatre was taken up by the French, and only a few friends of Beethoven ventured to hear the opera. These friends were now at that soirée, to bring Beethoven about, to consent to the changes they wanted to introduce in the opera in order to remove the heaviness of the first act. The necessity of these improvements was already acknowledged and settled among themselves. Meyer had prepared me for the coming storm, when Beethoven should hear of leaving out three whole numbers of the first act.

The Life of Ludwig van Beethoven, Volume II (of 3) — Part 56