Memorial of St. Bonaventure, 1221-1274; entered the Franciscan Order in his early twenties, and studied in Paris, where, in 1248, he received a doctorate in theology; in 1257, he was elected Minister General of the Order' in 1273, he became Cardinal of Albano and played a prominent role at the Council of Lyons, which aimed to unite the Latin and Greek Churches; he died in 1274, was canonized in 1482 and proclaimed a doctor of the Church in 1588 by Sixtus V