"Bolero" from the opera "I Vespri Siciliani" ("The Sicilian Vespers") "Bolero" from the opera "I Vespri Siciliani" ("The Sicilian Vespers") Libretto Eugène Scribe Main opus "I Vespri Siciliani - Les vêpres siciliennes" ("The Sicilian Vespers"), opera in 5 acts, libretto by Eugène Scribe