Former Owner
- Cambrai Cathedral1
- Cambron Abbey1
- Carl Hermann Grabauer1
- Carlo Francesco Frasconi1
- Casey Albert Wood1
- Castel-Lodève family1
- Castelluci1
- Catherina van Drenckwaert1
- Catherine de' Medici1
- Cati S Thomas1
- Caxton Club1
- Cecil Brent1
- Cecil Dunn Gardner1
- Cecil H. Clough1
- Cecil Mallaby Firth1
- Chacère Family1
- Champmol1
- Chapelle du monastère du Carmel de Nantes1
- Charles Alexander de Cosson1
- Charles Allen Munn1