The Fortress of the Faith besieged by the impious and the heretics, is defended by the Pope, the Bishops, the Monks and Doctors of the Church, who are the Chevaliers of the Faith From a 15th century miniature From Military and Religious Life in the Midd. The Fortress of the Faith besieged by the impious and the heretics, is defended by the Pope, the Bishops, the Monks and Doctors of the Church, who are the Chevaliers of the Faith From a 15th century miniature From Military and Religious Life