 At some point Jouy married the British born daughter of the novelist Lady Mary Hamilton who had moved to France with George Robinson Hamilton.Jouy now turned his attention to literature, and produced in 1807 with immense success the libretto for Gaspare Spontini's opera "La vestale".The piece ran for a hundred nights, and owing in part to its libretto, was characterized by the Institut de France as the best lyric drama of the day.