La bonne d'enfant (The Nanny) is an opérette bouffe, in one act by Jacques Offenbach to a French libretto by Eugène Bercioux.
[1] In 1858, this law was changed, and Offenbach was able to offer full-length operettas, beginning with Orpheus in the Underworld.
The piece was seen in 1857 at the St James's Theatre in London, and in Vienna in 1862 with Tostée as Dorothée; it was subsequently produced there in Hungarian.
During an evening when her employers are out of the house, both gentlemen try to convince her to marry them, which leads to a number of comic situations.
She ends up deciding to marry 'Brin d'Amour', the trumpeter of the Royal Dragoons, but tells her suitors that she will invite them to her wedding.