Former Owner
- Bergendal Collection1
- Bernard Quaritch1
- Bernardus de Pedio1
- Bertram Ashburnham, 5th Earl of Ashburnham1
- Bertrand de Chalençon1
- Betty Freudenheim1
- Biblioteca Trivulziana1
- Biblioteca civica di Verona1
- Biblioteca del Seminario Arcivescovile1
- Biblioteka Tulezynska1
- Bibliotheca Beggadorum1
- Bibliotheque Seminaire de Notre Dame de Puy1
- Bill Jackson1
- Bill Ward1
- Birch & Son1
- Birgittinessenklooster Mariënwater1
- Blenheim Palace1
- Bodleian Library1
- Boies Penrose1
- Boies Penrose II1