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.
Les pêcheurs de perles
The libretto was written by Eugène Cormon and Michel Carré. Cormon was a prolific author of libretti and straight drama, usually in collaboration with other writers. In his career he wrote or co-wrote at least 135 works, of which ', set to music by Aimé Maillart, was perhaps the most successful. Carré, who had initially trained as a painter, had worked with Jules Barbier on Gounod's opera "Faust" and had co-written the play ', which became the basis of the libretto for Offenbach's opera "The Tales of Hoffmann". Before ' Cormon and Carré had previously written a libretto for Maillart on a similar theme, ', which had been performed in 1860; they had originally planned to set their new story in Mexico before changing its location to Ceylon.