Former Owner
- B.C. Barker-Benfield1
- Baldassarre Boncompagni1
- Barbarigo family1
- Barbe de Laon1
- Bartolomeo Amici1
- Bateman family1
- Beatrice de Fouar1
- Beatus Rhenanus1
- Beauvais Cathedral1
- Benediktinerinnenabtei St. Walburg1
- Benetto Spinelli1
- Benjamin Franklin Stevens1
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- Bergendal Collection1
- Bernard M. Rosenthal1
- Bernard Quaritch1
- Bernardo Bembo1
- Biblioteca Trivulziana1
- Birgittinessenklooster Mariënwater1