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.
Francesco Barbaro (politician)
He wrote a treatise on marriage, "De re uxoria," in 1415 to celebrate the marriage of Lorenzo de' Medici and Ginevra Cavalcanti. It was inspired by ancient Latin and Greek sources, and he wrote it in just 25 days. In 1513, the treatise was published in Paris by Badius Ascensius, a transcription having been made in Verona by André Tiraqueau at the house of Guarino Veronese. A French translation was made by Martin du Pin in 1537. The work was translated into Italian by Alberto Lollio in 1548. The Latin version was reprinted in Paris in 1560 and again in Amsterdam in 1639. In 1667, another French translation was made by Claude Joly under the title "L'Etat du Marriage". Another Italian translation was made in 1785 as "A Scelta Della Moglie".