Author
- Burchard of Mount Sion1
- Byland Abbey1
- Bérenger de Frédol1
- Caelius Aurelianus1
- Caesarius of Arles1
- Camillo Bonadeo1
- Camillo Querno1
- Canons Regular of San Giorgio in Alga1
- Canons Regular of Urgel1
- Carlo Marsuppini1
- Carlo da Corte1
- Cassius Dio1
- Castino1
- Catalina Díaz Vilchis1
- Cattanei family1
- Cavalli1
- Cecco d'Ascoli1
- Charles II of England1
- Charles V of France1
- Charles VII of France1