Former Owner
- Carlo Bonaparte1
- Carlo Francesco Frasconi1
- Carlo Morbio1
- Castelluci1
- Catharine Wisser1
- Caxton Club1
- Cecil Brent1
- Cecil Deedes1
- Cecil H. Clough1
- Chacère Family1
- Chapelle du monastère du Carmel de Nantes1
- Charles Augustus Stoddard1
- Charles B. Hoyt1
- Charles Brodrick1
- Charles Bruce, 3rd Earl of Ailesbury1
- Charles Burr1
- Charles Busnel1
- Charles Chardin1
- Charles F. Gunther1
- Charles Holte1