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.
Josepha Duschek
In 1787, "The Marriage of Figaro" was mounted in a Prague production. A number of Prague music lovers invited Mozart to come to Prague and hear the production; the "Grove Dictionary" suggested that Duschek and her husband František were among them.