- Cardinals1
- Cardona, Catalina de, 1519-15771
- Carlos, Prince of Viana, 1421-14611
- Caro, Ana1
- Castile (Kingdom). Cortes1
- Castilla y León (Spain). Cortes1
- Catches1
- Catholic Church. Diocese of Sigüenza-Guadalajara (Spain)1
- Cavallero, Diego1
- Censored works1
- Centellas y Confortes, Jaime1
- Centellas, Magdalena de1
- Charles II, King of Spain, 1661-17001
- Charles IV, Duke of Lorraine, 1604-16751
- Charms1
- Chivalry1
- Christian martyrs1
- Christianity and other religions1
- Chronologies1
- Church history1