I puritani (The Puritans) is an opera in three acts, by Vincenzo Bellini. Libretto by Count Carlo Pepoli based on Têtes rondes et Cavaliers by Jacques-François Ancelot and Joseph Xavier Saintine. First produced at the Théâtre-Italien in Paris, January 24, 1835. At the same time, Bellini composed an alternative version intended for the famous Maria Malibran, who was to sing it in Naples; in fact, this version was not performed on stage until April 10, 1986 at the Teatro Petruzzelli, Bari.