Griselda is an opera seria in three acts by the Italian composer Alessandro Scarlatti, the last of Scarlatti’s operas to survive completely today. The libretto is by Apostolo Zeno, with revisions by an anonymous author. Zeno wrote his work in 1701 and it had already been set by Pollarolo and Antonio Maria Bononcini (Tomaso Albinoni, Giovanni Bononcini and Antonio Vivaldi would later produce versions). It is based on the story of Patient Griselda from Boccaccio's tenth day of The Decameron. Scarlatti's opera was first performed at the Teatro Capranica, Rome, in January 1721 with an all-male cast (five castratos and a tenor).