(The Daughter of the Regiment) is an opéra comique in two acts by Gaetano Donizetti, set to a French libretto by Jules-Henri Vernoy de Saint-Georges and Jean-François Bayard. It was first performed on 11 February 1840 by the Paris Opéra-Comique at the Salle de la Bourse. Donizetti wrote the opera while living in Paris between 1838 and 1840 and preparing a revised version of his then-unperformed Italian opera, Poliuto, as Les martyrs for the Paris Opéra. Since Martyrs was delayed, the composer had time to write the music for La fille du régiment, his first opera set to a French text, and to stage the French version of Lucia di Lammermoor, Lucie de Lammermoor. La fille du régiment quickly became a popular success partly because of the famous aria "Ah! mes amis, quel jour de fête!", which requires the tenor to sing no fewer than eight high Cs – a frequently sung ninth is not written. , a slightly different Italian-language version (in translation by Calisto Bassi), was adapted to the tastes of the Italian public. Performance history Opéra-Comique premiere The opening night was "a barely averted disaster." Apparently the lead tenor was frequently off pitch. The noted French tenor Gilbert Duprez, who was present, later observed in his Souvenirs d'un chanteur: "Donizetti often swore to me how his self-esteem as a composer had suffered in Paris. He was never treated there according to his merits. I myself saw the unsuccess, almost the collapse, of La fille du régiment." It received a highly negative review from the French critic and composer Hector Berlioz (Journal des débats, 16 February 1840), who claimed it could not be taken seriously by the public or its composer, although Berlioz conceded that some of the music, "the little waltz that serves as the entr'acte and the trio dialogué ... lack neither vivacity nor freshness." The source of Berlioz's hostility is revealed later in his review: What, two major scores for the Opéra, Les martyrs and Le duc d'Albe, two others at the Théâtre de la Renaissance, Lucie de Lammermoor and L'ange de Nisida, two at the Opéra-Comique, La fille du régiment and another whose title is still unknown, and yet another for the Théâtre-Italien, will have been written or transcribed in one year by the same composer! M[onsieur] Donizetti seems to treat us like a conquered country; it is a veritable invasion. One can no