Name
- Brandão, Antonio, Archbishop of Goa1
- Brito Coutiño, Pedro, Cavallero de Calatrava1
- Burriel, Andres Marcos, Antiquarian1
- Buys, Willem, Dutch Plenipotentiary at the Treaty of Utrecht1
- Buzardo, Georgio, Papal nuncio1
- Cadaval1
- Caettano, Francesco, Secretary of the Portuguese Legation in London1
- Camara, Counts of Calheta1
- Campazas, Gerundio, Fray1
- Campbell, John, 2nd Duke of Argyll and 1st Duke of Greenwich1
- Camuezo, Pasqual1
- Carafa, Pier Luigi, Bishop of Tricarico, Cardinal 16451
- Cardoso de Sequeira, Martin1
- Casiri, Miguel, Librarian of the Escorial1
- Castro Sarmento, Jacob, Physician to the Portuguese Embassy in England1
- Castro, Diogo Ataide, Conde1
- Castro, Pedro, Canon of Malaga and Seville1
- Catherine of Portugal, wife of John, 6th Duke of Braganza, 1540-16141
- Cervantes Saavedra, Miguel de, author1
- Cetina, Gutierre1