Former Owner
- Charles Burr1
- Charles D. Humberd2
- Charles Fairfax Murray1
- Charles Hoff3
- Charles Joseph Harford1
- Charles Stephen Ascherson3
- Charles William Dyson Perrins1
- Chiaravalle della Colomba Abbey1
- Christiania Kathedralskoles Bibliothek1
- Cini Johan de Barisani1
- Claude Augustin de Cosson1
- Clement XI1
- Coella Lindsay Ricketts20
- Compagnia della Purificazione di Maria e di San Zanobi1
- Compagnia della Vergine Maria (Cento, Italy)1
- Cortlandt F. Bishop1
- Cover of a binding, illegible on what was the outer side.1
- D. Andreas Parisino1
- Damiano Muoni1
- David Bee1