Non più andrai
"" (You shall go no more) is an aria for bass from Mozart's 1786 opera "The Marriage of Figaro", K. 492. The Italian libretto was written by Lorenzo Da Ponte based on a stage comedy by Pierre Beaumarchais, "La folle journée, ou le Mariage de Figaro" (1784). It is sung by Figaro at the end of the first act.
Leonora (opera)
Leonora, ossia L’amore coniugale ("Leonora or Conjugal Love") is an opera (specifically a "dramma semiserio") in two acts by the Italian composer Ferdinando Paer. The libretto, by Giovanni Schmidt, is based on "Léonore ou L’Amour conjugal" (1794) by Jean-Nicolas Bouilly, which was also the source of Beethoven's "Fidelio". Beethoven himself owned a score of Paer's opera and it is believed to have had some influence on his work. "Leonora" was first performed at the Kleines Kurfürstliches Theater, Dresden on 3 October 1804 with the composer's wife singing the title role.