- Catherine, of Alexandria, Saint1
- Catholic Church. Collectarium1
- Catholic Church. Diocese of Salisbury (England)1
- Catholic Church. Ordo divini officii (Archdiocese of Mainz : Rhineland-Palatinate, Germany)1
- Catholic Church. Pope1
- Catholic almanacs1
- Catholic church buildings1
- Celestines1
- Certosa del Galluzzo (Florence, Italy)1
- Charlemagne, Emperor, 742-8141
- Chemises1
- Chiesa di San Domenico (Ferrara, Italy)1
- Chile1
- Christian ethics--Early church1
- Christian hagiography1
- Christian pilgrims and pilgrimages1
- Christian poetry, English (Middle)1
- Christian poetry, French1
- Christian poetry, Latin1
- Christian saints--Cult1