La belle Hélène
According to an anecdote, when an admirer told the composer that he had heard his opera the previous night, Rossini replied "What? The whole of it?". Another version of the story refers only to act 2. In 1864 Offenbach quoted the patriotic trio from act 2, "Lorsque la Grèce est un champ de carnage" in "La belle Hélène".