  Bonaventure of Bagnoregio (b. ca. 1217, d. 15 July 1274), the religious name of Giovanni di Fidanza, was a Franciscan friar, Master of Theology at the University of Paris, Minister General of the Franciscan Order, and Cardinal of the Catholic Church. During his lifetime he rose to become one of the most prominent men in Latin Christianity. His academic career as a theologian was cut short when in 1257 he was put in charge of the Order of Friars Minor (O.F.M.). He steered the Franciscans on a moderate and intellectual course that made them the most prominent order in the Catholic Church until the coming of the Jesuits. His theology was marked by an attempt completely to integrate faith and reason. He thought of Christ as the “one true master” who offers humans knowledge that begins in faith, is developed through rational understanding, and is perfected by mystical union with God.