Author
- Cassinese Congregation1
- Cecco d'Ascoli1
- Cherubino da Spoleto1
- Claudian1
- Clement V1
- Clement VIII1
- Coelius Sedulius1
- Cyril of Jerusalem1
- Cyrillus de Quidenon1
- Dante Alighieri1
- Denis Faucher1
- Diogenes Laërtius1
- Domenico Cavalca1
- Egidio Foscarari1
- Elias of Cortona1
- Ephrem the Syrian1
- Euclid1
- Eutropius1
- Federation of the Seven Communities1
- Francesco Piccolomini1