Fausta is a melodramma, or opera seria, in two acts by Gaetano Donizetti. The Italian libretto was partly written by Domenico Gilardoni, who died while doing so: the remainder was written by Donizetti. The literary source of the opera's libretto is Crispo, a tragedy improvised by Tommaso Sgricci on 3 November 1827. The opera successfully debuted on 12 January 1832 at the Teatro di San Carlo in Naples, and was written with prima donna Giuseppina Ronzi de Begnis in mind. De Begnis was rumored to be the King's mistress. Although the libretto had irked the chief censor, the production went ahead, supposedly because of De Begnis' influence in high places. Donizetti wrote this opera for the birthday of King Ferdinand II of the Two Sicilies. Walter Scott was present at the premiere and it has been suggested that the King introduced him to the composer; Scott thought that Fausta was “without any remarkable music.” The opera marked the beginning of an important and fruitful collaboration with Ronzi de Begnis. Only 18 days separate the premiere of Bellini's Norma at La Scala and Donizetti's new opera – both set in ancient Rome and her Empire. Donizetti's aim was not to compete with Bellini's opera but simply to expand on the success of his Anna Bolena of 1830. The opera, based on historical events, involves the complications that ensue when Fausta, the wife of Emperor Constantine I falls in love with her stepson. Historical accuracy leaves something to be desired; in fact Maximian (Massimiano) had died much before the incestuous scandal involving Fausta and Crispus (Crispo) exploded. Performance history When the opera was performed at the Teatro del Fondo on 30 August and 2 September 1832, Donizetti added a duet for Luigi Lablache who had replaced Tamburini in the role of Costantino. Donizetti was not pleased with his interpretation; however, this was one of the very rare instances in which the composer made a negative remark about the famous bass. Fausta was performed for the first time at La Scala, Milan, on 26 December 1832, as the prestigious season's premiere; the public fell in love with it and this resulted in a total of 31 performances. For this occasion Donizetti added an overture, and a cavatina "Par che mi dica ancor" for the soprano Adelaide Tosi. The composer borrowed this aria di sortita (entrance aria) from his earlier Il castello di Kenilworth