Author
- Burchard of Mount Sion1
- Caesarius of Arles1
- Carlo da Corte1
- Carthusian Order1
- Cattanei family1
- Christine de Pizan1
- Cistercians1
- Claudian1
- Clement V1
- Clement VII1
- Clement VIII1
- Cofradía Mayor de Medinaceli1
- Cofradía de la Caridad de Maqueda1
- Cofradía de la Transfixión de Zaragoza1
- Cologne Charterhouse1
- Confraternity of Saint Eulalia and Saint Gênes1
- Confraternity of St. Peter martyr (Palencia)1
- Conrad of Saxony1
- Consiglio Generale1
- Conte di Ottomano Freducci1