Which opera has more acts, Le prophète or La scala di seta?
Le prophète Le prophète ("The Prophet") is a grand opera in five acts by Giacomo Meyerbeer. The French-language libretto was by Eugène Scribe and Émile Deschamps, after passages from the "Essay on the Manners and Spirit of Nations" by Voltaire. The plot is based on the life of John of Leiden, Anabaptist leader and self-proclaimed "King of Münster" in the 16th century.
I due Foscari I due Foscari ("The Two Foscari") is an opera in three acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on a historical play, "The Two Foscari" by Lord Byron.