Question: Ivanhoé contains music from the opera that has a libretto by whom?
Sentence (from "La gazza ladra"): La gazza ladra (] , The Thieving Magpie) is a "melodramma" or opera semiseria in two acts by Gioachino Rossini, with a libretto by Giovanni Gherardini based on "La pie voleuse" by Théodore Baudouin d'Aubigny and Louis-Charles Caigniez.
Relevant evidence: Yes