His position at the Theater an der Wien was terminated when the theatre changed management in early 1804, and he was forced to move temporarily to the suburbs of Vienna with his friend Stephan von Breuning. This slowed work on "Leonore", (his original title for his opera), his largest work to date, for a time. It was delayed again by the Austrian censor and finally premiered, under its present title of "Fidelio" in November 1805 to houses that were nearly empty because of the French occupation of the city. In addition to being a financial failure, this version of "Fidelio" was also a critical failure, and Beethoven began revising it.