- Catholic Church. Archdiocese of Cologne (Germany)3
- Catholic Church. Archdiocese of Wrocław (Poland)1
- Catholic Church. Curia Romana1
- Catholic Church. Diocese of Toul (France)1
- Catholic authors1
- Cathédrale Saint-Etienne (Toul, France)1
- Catiline, approximately 108 B.C.-62 B.C.2
- Cecco, d'Ascoli, 1269-13271
- Censures, Ecclesiastical1
- Cesare d'Este, Duke of Modena and Reggio, 1552-16281
- Chants1
- Charles VI, King of France, 1368-14221
- Charles VIII, King of France, 1470-14981
- Charles, Duke of Burgundy, 1433-14771
- Charts, diagrams, etc.1
- Chemistry10
- Chess3
- Chiarini family1
- Childhood of Jesus Christ1
- Children1