Former Owner
- Carlo Francesco Frasconi1
- Casey Albert Wood1
- Castel-Lodève family1
- Catherina van Drenckwaert1
- Catherine de' Medici1
- Cati S Thomas1
- Caxton Club1
- Cecil Brent1
- Cecil Dunn Gardner1
- Cecil Mallaby Firth1
- Chacère Family1
- Champmol1
- Chapelle du monastère du Carmel de Nantes1
- Charles Archibald Stonehill1
- Charles B. Hoyt1
- Charles Brodrick1
- Charles Busnel1
- Charles Carmichael Lacaita1
- Charles Chardin1
- Charles Deane1