Anthony Maria Zaccaria was an Italian priest and a significant figure in the early Counter-Reformation. Born in Cremona in 1502, he initially trained as a physician before pursuing theological studies and ordination. He is primarily recognized for establishing several religious communities, including the Barnabites, the Angelic Sisters of Saint Paul, and a lay group. Through his leadership and preaching, he promoted intense devotion to the Eucharist and the Passion of Christ, seeking to reform religious and social life during the 16th century.