- Croatia--Dalmatia1
- Croatia--Šibenik1
- Cronica general de España (Ocampo, Florián de)1
- Crucifixion in art1
- Crusades (Fourth) (1202-1204)1
- Crypto-Jews1
- Crypto-Jews--Legal status, laws, etc.1
- Cuckoos1
- Cuenca, Alonso Gaytan de1
- Cuenca, Francisco Gaytan de1
- Cuenca, Juan Gaytan de1
- Cueva y de Castilla, Beltrán III de la, Duke of Alburquerque, -16121
- Cueva, Andrea della1
- Cults1
- Curiosities and wonders1
- Cynics (Greek philosophy)1
- Cyprian War (1570-1571)1
- Cyprus--Paphos (District)1
- Cyropaedia (Xenophon)1
- Cyrus, the Great, King of Persia, -530 B.C. or 529 B.C.1