- Contubernium rosae1
- Coptic Church--Liturgy--Texts--16th century1
- Coptic language1
- Coptic manuscripts1
- Cornelio, Giovanni1
- Correspondence6
- Cortesi, Girolamo1
- Cosimo I, Grand-Duke of Tuscany, 1519-15746
- Cosimo II, Grand Duke of Tuscany, 1590-16211
- Cosimo III, Grand-Duke of Tuscany, 1642-17231
- Cosmography2
- Costa, Gaspar, active 1533-15341
- Council of Trent2
- Counter-Reformation1
- Courts2
- Courts and courtiers3
- Coutinho, Francisco de Sousa, 1597 or 1598-16601
- Creation1
- Criminal law1
- Criminal procedure1