- Carli, Giovanfrancesco de'1
- Carlo, Bindo di1
- Carlo, Giovanbattista di1
- Carnesecchi, Alessandro1
- Carretto, Federico del1
- Carretto, Felicita del1
- Carretto, Geronimo del1
- Carretto, Giovanni del1
- Carretto, Paolo del1
- Casa, Lodovico della1
- Casini, Ciulla1
- Casini, Vergilio1
- Castello di Rapolano (Rapolano Terme, Italy)1
- Castrucci, Antonio1
- Catholic Church7
- Catholic Church. Archdiocese of Florence (Italy)1
- Catholic Church. Archdiocese of Siena (Italy)3
- Catholic Church. Archdiocese of Wrocław (Poland)1
- Catholic Church. Cancellaria Apostolica1
- Catholic Church. Diocese of Cortona (Italy)1