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.
Karl Ludwig Giesecke
In later work, Giesecke translated the Italian libretti of Mozart's operas "Le nozze di Figaro" (1793) and "Così fan tutte" (1794) into German. In total he was to write libretti for more than fifteen operas by various composers between 1789 and 1800; see listing below.