- Callistus II, Pope, -11241
- Cambrai, League of, 15081
- Campeggi, Tommaso, 1483-15641
- Cancon (France)1
- Candles and lights (Judaism)1
- Canon law1
- Cantillation--Instruction and study1
- Capponi family1
- Capponi, Alvisia1
- Capponi, Ludovico, 1533-16141
- Capponi, Niccolò1
- Carlos, Prince of Viana, 1421-14611
- Carrillo family1
- Carrillo, Pedro, -approximately 1436--Family1
- Castile (Kingdom). Cortes1
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- Catholic Church. Archdiocese of Cologne (Germany)1