- Cilli, Antonio1
- Cino, Bartholomeo di1
- Cino, Francesca Piccolomini di1
- Cino, Francesco di1
- Cino, Nofrio di1
- Cistercian monasteries1
- Cistercians--France1
- Citizenship1
- Classical biography1
- Classical literature1
- Clergy--Appointment, call, and election1
- Clinical medicine1
- Cocchi Donati, Antonio1
- Cocchi Donati, Piera1
- Command of troops1
- Commercial courts1
- Conduct of life1
- Confession--Catholic Church1
- Confraternitate Sancta Maria Rotunda (Confraternity : Milan, Italy)1
- Confraternities (Canon law)1