Former Owner
- Baldasarre Boncompagni1
- Baldassarre Boncompagni1
- Bartholus Blancellus1
- Benediktinerinnenabtei St. Walburg1
- Bet din tsedeḳ London ṿeha-medinah1
- Bill Jackson1
- Breslauer and Meyer1
- Budapest University of Jewish Studies1
- Buxheim Charterhouse1
- Carl Hermann Grabauer1
- Carleton Rubira Richmond1
- Carlo Bonaparte1
- Carlo Morbio1
- Cecil Deedes1
- Charles Alexander de Cosson1
- Charles Burr1
- Charles Stephen Ascherson1
- Charles William Dyson Perrins1
- Claude Augustin de Cosson1
- Coppo family1