Author
- Bragadin1
- Burchard of Mount Sion1
- Calisto Mazzolla Vicentino1
- Canons Regular of Urgel1
- Carlo de' Medici1
- Carthusian Order1
- Castello del Vivaro1
- Castino1
- Cattanei family1
- Cavalli1
- Chihab al-Umari1
- Cicero1
- Claudian1
- Coelius Sedulius1
- Confraternita della Santa Croce in Lucca1
- Confraternity of Saint Eulalia and Saint Gênes1
- Confraternity of St. Peter martyr (Palencia)1
- Conte Gabuzzi1
- Cosimo I de' Medici, Grand Duke of Tuscany1
- Council of Basel1