Droit du seigneur
In Mozart's "The Marriage of Figaro", which premiered in 1786 with a libretto by Lorenzo Da Ponte, the comic plot revolves around the successful efforts of the young bride and groom, Figaro and Susanna, to block the efforts of the unfaithful Count Almaviva to seduce Susanna. To achieve his aim, the frustrated Count threatens to reinstitute "droit du seigneur". It was based on a play by Pierre Beaumarchais.
Le pescatrici
"Le pescatrici" was the second of the three Goldoni libretti that Haydn set to music — the other two were "Lo speziale" (1768) and "Il mondo della luna" (1777). However, Haydn was not the first to use Goldoni's libretto. It had previously been used for operas by Ferdinando Bertoni (Venice, 1751) and Niccolò Piccinni (Rome 1766) and was later used by Florian Leopold Gassmann (Vienna, 1771). Haydn composed "Le pescatrici" as part of the lavish celebrations for the marriage of Prince Nikolaus Esterházy's niece, Maria Theresa Countess Lamberg to Alois Count Poggi at Eszterháza where the opera was first performed on 16 September 1770. The roles of Lesbina and Frisellino were first sung by Maria Magdalena Spangler and her husband, Carl Friberth, two prominent court singers at Eszterháza. Carl Friberth may also have had a hand in adapting Goldoni's libretto for Haydn.