Author
- Carthusian Order1
- Charles IV1
- Cherubino da Spoleto1
- Christine de Pizan1
- Clement V1
- Coelius Sedulius1
- Continuator of Martin of Troppau1
- Coptic Orthodox Church1
- Council of Basel1
- Cyprian1
- David Abudirham1
- Duchy of Milan1
- Einhard1
- Elijah Bashyazi1
- Elishaʻa, ha-Yeṿani1
- Enguerrand de Monstrelet1
- Euclid1
- Eutropius1
- Fakhr al-Din al-Razi1
- Farabi1