- Carthusians1
- Casting off1
- Categories (Philosophy)1
- Cathedral bindings1
- Catherine, of Siena, Saint, 1347-13801
- Catholic Church--Liturgy--Calendar1
- Catholic Church. Archdiocese of Lyon (France)1
- Catholic Church. Archdiocese of Pesaro (Italy)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
- Cavalcanti, Aldobrandino, 1217-12791
- Ceccoli, Baldo1
- Ceccoli, Bartolo1
- Celestines1
- Celsus, Saint, -681
- Centerpiece and cornerpiece bindings1