Are Béatrice et Bénédict and Les pêcheurs de perles both operas?
Béatrice et Bénédict Béatrice et Bénédict ("Beatrice and Benedick") is an opéra comique in two acts by Hector Berlioz. Berlioz wrote the French libretto himself, based closely on Shakespeare's "Much Ado About Nothing".
Xerse (Bononcini) Xerse (Xerxes) is an opera in three acts by Giovanni Bononcini. It was designated as a "dramma per musica". The libretto was written by Silvio Stampiglia after that by Nicolò Minato which had been used for the 1654 opera of the same name by Francesco Cavalli. Stampiglia's version was in turn used as the basis for Handel's Serse.