- Castile (Kingdom). Cortes1
- Categoriae (Aristotle)1
- Catherine, of Siena, Saint, 1347-13801
- Catholic Church. Archdiocese of Pesaro (Italy)1
- Catholic Church. Archdiocese of Salzburg (Austria)1
- Centellas y Confortes, Jaime1
- Centellas, Magdalena de1
- Centerpiece and cornerpiece bindings1
- Central America1
- Central Asia1
- Chansons de geste1
- Charles IV, Duke of Lorraine, 1604-16751
- Charles VII, King of France, 1403-14611
- Charon (Greek mythology)1
- Charters and articles of incorporation1
- Chess1
- Chiesa di San Giovanni Battista (Gradara, Italy)1
- China--Xinjiang Uygur Zizhiqu1
- Christian literature, Syriac1
- Christian poetry, English (Middle)1