The Marriage of Figaro (play)
The play formed the basis for an opera with a libretto by Lorenzo Da Ponte and music by Mozart, also called "The Marriage of Figaro" (1786). In 1799, another opera based on the same play, "La pazza giornata, ovvero Il matrimonio di Figaro", was produced in Venice with libretto by Gaetano Rossi and music by Marcos Portugal.
Gli equivoci
Following the success of his libretto for "The Marriage of Figaro", Da Ponte was asked by Storace to provide for him a libretto based on Shakespeare. Da Ponte compressed Shakespeare's plot into two acts, but retained nearly all the key elements. "Gli equivoci" was the second of Storace's operas to be performed at the Burgtheater.