- Capponi family1
- Capponi, Alvisia1
- Capponi, Ludovico, 1533-16141
- Capponi, Niccolò1
- Cardinal virtues1
- Cartularies1
- Categoriae (Aristotle)1
- Catherine, of Siena, Saint, 1347-13801
- Catholic Church. Archdiocese of Wrocław (Poland)1
- Catholic Church. Collegium Cardinalium1
- Catholic Church. Curia Romana1
- Catholic Church. Diocese of Toul (France)1
- Catholic authors1
- Cathédrale Saint-Etienne (Toul, France)1
- 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
- Charts, diagrams, etc.1