- Conquest of Peru (Peru : 1522-1548)1
- Construction industry1
- Contracts1
- Contracts (Islamic law)1
- Contubernium rosae1
- Cornelio, Giovanni1
- Cortesi, Girolamo1
- Cosimo II, Grand Duke of Tuscany, 1590-16211
- Cosimo III, Grand-Duke of Tuscany, 1642-17231
- Costa, Gaspar, active 1533-15341
- Counter-Reformation1
- Coutinho, Francisco de Sousa, 1597 or 1598-16601
- Creation1
- Criminal law1
- Criminal procedure1
- Cronica general de España (Ocampo, Florián de)1
- Cryptography1
- Cyprus--Paphos (District)1
- Cyropaedia (Xenophon)1
- Cyrus, the Great, King of Persia, -530 B.C. or 529 B.C.1