Question: Ivanhoé contains music from the opera that has a libretto by whom?
Sentence (from "Ivanhoé"): The music was adapted, with the composer's permission, by the music-publisher Antonio Pacini from Rossini's operas, namely "Semiramide", "La Cenerentola", "La gazza ladra", and "Tancredi" in order to introduce his music to Paris.
Relevant evidence: Yes