How many acts are in both  Lucia di Lammermoor and La buona figliuola?
Lucia di Lammermoor Lucia di Lammermoor is a "dramma tragico" (tragic opera) in three acts by Gaetano Donizetti. Salvadore Cammarano wrote the Italian-language libretto loosely based upon Sir Walter Scott's historical novel "The Bride of Lammermoor".
La Cleopatra La Cleopatra (1789) is an opera seria in two acts by composer Domenico Cimarosa with an Italian libretto by F. Moretti.