- Carthusians1
- Castello di Rapolano (Rapolano Terme, Italy)1
- Catherine, of Alexandria, Saint1
- Catholic Church. Diocese of Sion (Switzerland)1
- Cavalcanti, Aldobrandino, 1217-12791
- Charlemagne, Emperor, 742-8141
- Charles V, Holy Roman Emperor, 1500-15581
- Charters1
- Chiarini family1
- Christian ethics--Catholic authors1
- Christian ethics--Early church1
- Christian hagiography1
- Christian heresies1
- Christian heresies--Early church1
- Christian life--Catholic authors1
- Christian literature, Early1
- Christian martyrs1
- Christian saints--Biography1
- Christian saints--Cult1
- Christian women saints1