- Bosses (Bindings)9
- Botany3
- Botany, Medical4
- Bourbon, Jacques de, 1370-14381
- Bracciolini, Poggio, 1380-14592
- Brancacci, Antonio1
- Brancacci, Branca1
- Brancacci, Caterina1
- Brass bosses (Bindings)6
- Brass clasps1
- Breviaries65
- Breviary (Benedictine : Catholic Church)1
- Breviary (Catholic Church)5
- Bridget, of Sweden, Saint, approximately 1303-13731
- Brocade bindings1
- Brudenell family1
- Brulefer, Etienne, -approximately 14991
- Brunelleschi, Alderotto de'1
- Brunelleschi, Antonia1
- Brunelleschi, Betto de'1