- Busdraghi, Piero, 14th century1
- Cabala1
- Cambrai, League of, 15081
- Canon law--Handbooks, manuals, etc--Early works to 18001
- Canonists1
- Capponi, Alvisia1
- Capponi, Ludovico, 1533-16141
- Capponi, Niccolò1
- Cardinal virtues1
- Cartularies1
- Catholic Church. Archdiocese of Wrocław (Poland)1
- Catholic Church. Curia Romana1
- Catholic Church. Diocese of Toul (France)1
- Cathédrale Saint-Etienne (Toul, France)1
- Censures, Ecclesiastical1
- Charles VI, King of France, 1368-14221
- Charles VIII, King of France, 1470-14981
- Chess1
- Choirbooks1
- Christian hagiography1