- Carlos, Prince of Viana, 1421-14612
- Carmi family4
- Caro, Ana1
- Carrillo family1
- Carrillo, Pedro, -approximately 1436--Family1
- Carthusians5
- Case grammar2
- Caste8
- Caste--Religious aspects--Hinduism3
- Castile (Kingdom). Cortes1
- Castilla y León (Spain). Cortes2
- Castles1
- Catches4
- Catedral (Córdoba, Spain)1
- Categoriae (Aristotle)3
- Categories (Philosophy)1
- Catherine, of Alexandria, Saint2
- Catherine, of Siena, Saint, 1347-13802
- Catholic Church113
- Catholic Church. Archdiocese of Cologne (Germany)3