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.
Martino Carbonaro
Martino Carbonaro, o sia Gli sposi fuggitivi was the last of fifty-one operas written by Italian composer Giuseppe Gazzaniga. The farsa has an Italian libretto by Giuseppe Foppa and premiered at the Teatro San Moisè in Venice, Italy in 1801.