Stiffelio
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Stiffelio is an opera in three acts by Giuseppe Verdi, from an Italian libretto by Francesco Maria Piave, based on the play Le Pasteur, ou l'Évangile et le Foyer by Émile Souvestre and Eugène Bourgeois. First performance: November 16, 1850, Teatro Grande, Trieste.
This opera was revised by Verdi in 1857, into a new four act opera Aroldo.