Former Owner
- Bonvesino, Marco1
- Brinton, Daniel G. 1837-18991
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Bākīr ibn Muṣṭafá Fūṭī1
- Bīkānera Anūpa Saṃskr̥ta Pustakālaya1
- C. W. S. Dixon1
- Caesareum Societatis Jesu Collegium Viennense1
- Carl Alphons Geigy-Hagenbach1
- Carl Frederick Haussmann1
- Carl Reinhardt3
- Carleton Rubira Richmond1
- Carlo Morbio5
- Cecil Deedes1
- Charles Alexander de Cosson1
- Charles Burr2
- Charles D. Humberd1
- Charles E. Roseman Jr.1
- Charles F. Gunther2
- Charles Hurleston1