- Catalogs1
- Categories (Philosophy)1
- Cathedral bindings1
- Catholic Church. Archdiocese of Lyon (France)1
- Catholic Church. Archdiocese of Reims (France)1
- Catholic Church. Archdiocese of Siena (Italy)1
- Catholic Church. Curia Romana1
- Catholic Church. Diocese of Salisbury (England)1
- Catholic Church. Ordo divini officii (Archdiocese of Mainz : Rhineland-Palatinate, Germany)1
- Cathédrale de Chartres1
- Ceccoli, Baldo1
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- Celestines1
- Celsus, Saint, -681
- Centerpiece and cornerpiece bindings1
- Certano, Daina di1
- Chants1
- Charity1
- Charles VI, King of France, 1368-14221
- Charles, Duke of Burgundy, 1433-14771