- Classical dictionaries1
- Classical literature1
- Classification of sciences1
- Clement VIII, Pope, 1536-16051
- Clergy--Taxation1
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- Clothing and dress1
- Clusius, Carolus, 1526-16091
- Cobelo family1
- Cocchi Donati, Antonio1
- Cocchi Donati, Piera1
- Codaro, Abramo1
- Coen, Caim, active 17th century1
- Coffee1
- Cofradía de la Transfixión de Zaragoza1
- Coligny, Gaspard de, seigneur de Châtillon, 1519-15721
- Collections1
- Colleoni, Bartolomeo, 1400-14751
- Collégiale Saint-Vincent de Soignies1
- Colombia1