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.
Ferdinando Fontana
During his time in Milan, Fontana wrote two plays in Milanese dialect, "La Pina Madamin" and "La Statôa del sciôr Incioda". Both had considerable success and starred Edoardo Ferravilla, considered one of the greatest comic actors in Milanese theatre. He wrote numerous libretti, including two for Alberto Franchetti ("Asrael" and "Zoroastro") and two for Puccini ("Le Villi" and "Edgar"). He also translated several operetta libretti for performance in Italy, including Franz Lehár's "Die lustige Witwe (The Merry Widow)" and "Der Graf von Luxemburg (The Count of Luxembourg)", Oskar Nedbal's "Polenblut (Polish Blood)", and Edmund Eysler's "Der Frauenfresser (The Woman-Eater)". Early in his career, Fontana's output was prodigious: an 1886 article in "La Stampa" said that at the time, 13 new libretti by Fontana were being composed by 12 different composers.