Antonio Barberini was an Italian Catholic cardinal, Archbishop of Reims, military leader, patron of the arts and a prominent member of the House of Barberini. As one of the cardinal-nephews of Pope Urban VIII and a supporter of France, he played a significant role at a number of the papal conclaves of the 17th century. With his brothers Cardinal Francesco Barberini and Taddeo Barberini he helped to shape politics, religion, art and music of 17th century Italy. He is sometimes referred to as Antonio the Younger or Antonio Barberini iuniore to distinguish him from his uncle Antonio Marcello Barberini.