- Catholic Church. Archdiocese of Wrocław (Poland)1
- Catholic Church. Cancellaria Apostolica1
- Catholic Church. Diocese of Cortona (Italy)1
- Catholic Church. Diocese of Pistoia (Italy)3
- Catholic Church. Diocese of Toul (France)1
- Cathédrale Saint-Etienne (Toul, France)1
- Cecchi, Giovannino1
- Cecco, Antonio1
- Cecco, Nato di1
- Ceccoli, Baldo1
- Ceccoli, Bartolo1
- Celleri, Azzo1
- Celleri, Fabrizio1
- Celleri, Ippolita1
- Certano, Daina di1
- Charles VI, King of France, 1368-14221
- Chelli, Marco1
- Chellini, Bartolomeo1
- Chiari, Michele1
- Chiesa Propositura di S. Cassiano (San Casciano in Val di Pesa, Italy)1