The Marriage of Figaro
The Marriage of Figaro (, ), K. 492, is an opera buffa (comic opera) in four acts composed in 1786 by Wolfgang Amadeus Mozart, with an Italian libretto written by Lorenzo Da Ponte. It premiered at the Burgtheater in Vienna on 1 May 1786. The opera's libretto is based on a stage comedy by Pierre Beaumarchais, "La folle journée, ou le Mariage de Figaro" ("The Mad Day, or The Marriage of Figaro"), which was first performed in 1784. It tells how the servants Figaro and Susanna succeed in getting married, foiling the efforts of their philandering employer Count Almaviva to seduce Susanna and teaching him a lesson in fidelity.
Nicolas-François Guillard
Nicolas-François Guillard (16 January 1752 – 26 December 1814) was a French librettist. He was born in Chartres and died in Paris, the recipient of a government pension in recognition of his work writing librettos. He was also on "Comité de Lecture" of the Paris Opéra. One of the foremost of the French librettist of his generation, he wrote libretti for many noted composers of the day, including Salieri ("Les Horaces") and in particular Sacchini ("Œdipe à Colone", amongst many others). His most famous work is "Iphigénie en Tauride", his first libretto, set by Gluck after the composer had initially rejected it. Gluck collaborated with Guillard to heavily recast the libretto, not only to suit Gluck's artistic preferences, but also to accommodate pre-existing music that Gluck borrowed, both from himself and from other composers, when composing the opera.