- Cathedral bindings1
- Catherine, of Siena, Saint, 1347-13801
- Catholic Church. Archdiocese of Reims (France)1
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- Caucasus1
- Cavalcanti, Aldobrandino, 1217-12791
- Cecco, d'Ascoli, 1269-13271
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- Celsus, Saint, -681
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- Cesare d'Este, Duke of Modena and Reggio, 1552-16281
- Chagatai poetry1
- Chained books1
- Chand Bibi, Queen of Bijāpur, -16001
- Charitable uses, trusts, and foundations1
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