Name
- Cadaval1
- Cala, Carlos, Duque de Diano1
- Calepino, Jorge, Chronicler Royal of Portugal1
- Campazas, Gerundio, Fray1
- Camuezo, Pasqual1
- Canpo, Juan, Abbat of S Pedro de Cardeña1
- Cantalicio, Felix1
- Cardenas, Alonso, Spanish Ambassador in England1
- Cardoso de Sequeira, Martin1
- Caro, Rodrigo, Visitor of the Diocese of Seville1
- Carvalho de Parada, Antonio, Prior of Bucellas in Portugal1
- Carvalho e Mello, Sebastiao José de, Conde de Oeiras, 1st Marquês de Pombal1
- Casiri, Miguel, Librarian of the Escorial1
- Castillo, Diego Enriquez del1
- Castrillo, - di, Conte1
- Castro y Quinnones, Pedro Baza, Archbishop of Granada1
- Castro, Diogo Ataide, Conde1
- Castro, Diogo, Conde de Basto, Viceroy of Portugal1
- Castro, Francisco, Bishop of Guarda, Inquisitor-General of Portugal1
- Castro, Pedro, Canon of Malaga and Seville1