Former Owner
- Beatrice de Fouar1
- Benediktinerinnenabtei St. Walburg1
- Benjamin Franklin Stevens1
- Bernard Rosenthal1
- Bernardi1
- Bernardo Bembo1
- Beverly Chew1
- Biblioteca civica di Verona1
- Biblioteca del Seminario Arcivescovile1
- Bill Jackson1
- Bodleian Library1
- Breslauer and Meyer1
- Brick Row Book Shop1
- Bruce P. Ferrini1
- Buxheim Charterhouse1
- C.J. Spence1
- Camillo Riccio1
- Carl Hermann Grabauer1
- Carleton Rubira Richmond1
- Carlo Bonaparte1