Name
- Caetano, Enrico, Cardinal1
- Caravantes, Mathias1
- Carrillo de Toledo, Luis, Marquis of Caraçena, President of the Council of the Military Orders of Spain1
- Castigni, Giovanni Battista, Cardinal1
- Castro y Andrade, Antonio1
- Castro, Diogo, Conde de Basto, Viceroy of Portugal1
- Castro, Family1
- Castro, Francisco de, Conde de Castro Duque de Taurisano1
- Castro, Rodrigo, Cardinal1
- 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
- Cologne, Archbishop Elector of. Ernest, Duke of Bavaria1
- Colonna, Family1
- Commonwealth, England1
- Cornelius Tacitus, Gaius, Roman historian, c 55-after 1171
- Court of Rome1
- Coutinho, Joao, Conde de Redondo, Viceroy of India1