Name
- Castro y Andrade, Antonio1
- Castro, Diogo, Conde de Basto, Viceroy of Portugal1
- Castro, Francisco de, Conde de Castro Duque de Taurisano1
- Castro, Rodrigo, Cardinal1
- Cayas, Gabriel, Spanish Secretary of State1
- Charles II, Duke of Lorraine1
- Charles V, Holy Roman Emperor, 1500-1558, http://isni.org/isni/000000...1
- Charles, Archduke of Austria, Margrave of Burgau, son of the Archduke Ferdinand1
- Chumacero de Sotomayor, Visitor of the Council of the Exchequer1
- Clement VIII, Pope1
- Clemente, Hieronimo, Protonotario of Aragon1
- Cologne, Archbishop Elector of. Ernest, Duke of Bavaria1
- Colonna, Marc Antonio, Duke of Pagliano, Viceroy of Sicily1
- Commonwealth, England1
- Court of Rome1
- Coutinho, Joao, Conde de Redondo, Viceroy of India1
- Coutinho, Marquis1
- Cunha, Juseppe da1
- Delanges, Giuseppe Estienne, Deputy of Marseilles and correspondent of Pietro la Rocca, fl 15941
- Deza, Pedro, cardinal, inquisitor, Bishop of Albano and president of Granada, 1520-16001