- Casini, Ciulla1
- Castello di Rapolano (Rapolano Terme, Italy)1
- Castrucci, Antonio1
- Catherine, of Alexandria, Saint1
- Catholic Church. Archdeaconry of London (England)1
- Catholic Church. Archdiocese of Florence (Italy)1
- Catholic Church. Ordo divini officii (Archdiocese of Mainz : Rhineland-Palatinate, Germany)1
- Catholic Church. Pope1
- Cecchi, Giovannino1
- Cecco, Antonio1
- Cecco, Nato di1
- Censures, Ecclesiastical1
- Centerpiece and cornerpiece bindings1
- Chained bindings1
- Charles, Duke of Burgundy, 1433-14771
- Chaucer, Geoffrey, -14001
- Chelli, Marco1
- Chiari, Michele1
- Chiesa Propositura di S. Cassiano (San Casciano in Val di Pesa, Italy)1
- Chiesa di San Pancrazio (Florence, Italy)1