February 18 St. Leo the Great, Pope of Rome (461). Ven Cosmas of Yakhromsk (1492). St. Agapitus the Confessor, Bishop of Synnada in Phrygia (4th c.). St. Flavian the Confessor, Patriarch of Constantinople (449-450). SAINT LEO Saint Leo I the Great, Pope of Rome (440-461), received a fine and diverse education, which opened for him the possibility of an excellent worldly career. He yearned for the spiritual life, however, and