- Cardona, Catalina de, 1519-15771
- Carlos, Prince of Viana, 1421-14612
- Caro, Ana1
- Carrillo family1
- Carrillo, Pedro, -approximately 1436--Family1
- Castile (Kingdom). Cortes1
- Castilla y León (Spain). Cortes2
- Catches1
- Catholic Church12
- Catholic Church. Diocese of Sigüenza-Guadalajara (Spain)1
- Catholic Church. Province of Santiago de Compostela (Spain)1
- Censored works2
- Centellas y Confortes, Jaime1
- Centellas, Magdalena de1
- Charles IV, Duke of Lorraine, 1604-16751
- Charles V, Holy Roman Emperor, 1500-15583
- Chivalry1
- Christian saints1
- Christianity1
- Christianity and other religions1