Former Owner
- Bertram Ashburnham, 4th Earl of Ashburnham28
- Bertram Ashburnham, 5th Earl of Ashburnham1
- Bertram Dobell2
- Bertrand de Chalençon1
- Betty Freudenheim1
- Beverly Chew4
- Biblioteca Bottigella1
- Biblioteca Trivulziana1
- Biblioteca civica di Verona1
- Biblioteca del Seminario Arcivescovile1
- Biblioteka Tulezynska1
- Bibliotheque Seminaire de Notre Dame de Puy1
- Bill Jackson1
- Bill McGrath3
- Bill Ward1
- Birch & Son1
- Birgittinessenklooster Mariënwater1
- Bloomsbury Auctions7
- Bodleian Library1
- Boies Penrose1