Author
- Carlos José Gutiérrez de los Ríos y Sarmiento1
- Carrillo family1
- Catherine of Siena1
- Charles, Prince of Viana1
- Christianus Joannes de Villabalzana1
- Christine de Pizan1
- Cistercians1
- Coelius Sedulius1
- Cologne Charterhouse1
- Conrad Bote1
- Consiglio Generale1
- Cornelius Nepos1
- Dante Alighieri1
- David Abudirham1
- David of Augsburg1
- Dimitrios Chalkokondyles1
- Diogenes Laërtius1
- Diogenes of Sinope1
- Dominican Order1
- Donato Acciaioli1