- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Benefices, Ecclesiastical1
- Bona, Queen, consort of Sigismund I, King of Poland, 1494-15571
- British1
- Charles VIII, King of France, 1470-14981
- Christian heretics1
- Christianity1
- Chronologies1
- Church and state1
- Church history--Middle Ages1
- Clement VIII, Pope, 1536-16051
- Commerce1
- Controversial literature1
- Cosimo I, Grand-Duke of Tuscany, 1519-15741
- Council of Trent1
- Counter-Reformation1
- Coutinho, Francisco de Sousa, 1597 or 1598-16601
- Croatia--Dalmatia1
- Cyprian War (1570-1571)1
- Cyprus1