- Caro, Ana1
- Castilla y León (Spain). Cortes1
- Cathedral bindings1
- Catherine, of Siena, Saint, 1347-13801
- Catholic Church. Archdiocese of Pesaro (Italy)1
- Catholic Church. Diocese of Salisbury (England)1
- Catholic Church. Diocese of Sigüenza-Guadalajara (Spain)1
- Catholic Church. Ordo divini officii (Archdiocese of Mainz : Rhineland-Palatinate, Germany)1
- Catholic almanacs1
- Censored works1
- Censures, Ecclesiastical1
- Centellas y Confortes, Jaime1
- Centellas, Magdalena de1
- Central America1
- Central Asia1
- Certosa del Galluzzo (Florence, Italy)1
- Chained bindings1
- Charlemagne, Emperor, 742-8141
- Charles IV, Duke of Lorraine, 1604-16751
- Charles VII, King of France, 1403-14611