- Courtly love1
- Courts and courtiers1
- Criticism, Textual1
- Criticism, interpretation, etc.1
- Crucifixion of Jesus Christ1
- Crusades1
- Cur Deus homo (Anselm, Saint, Archbishop of Canterbury)1
- Customary law1
- Cynics (Greek philosophy)1
- Czech Republic--Brno1
- Dante Alighieri, 1265-13211
- Darius I, King of Persia, 548 B.C.-485 B.C.1
- De finibus bonorum et malorum (Cicero, Marcus Tullius)1
- De gradibus humilitatis et superbiae (Bernard, of Clairvaux, Saint)1
- Death registers1
- Decedents' estates1
- Declination (Astronomy)1
- Decretales Gregorii IX (Catholic Church)1
- Deeds1
- Deerskin bindings1