Former Owner
- Antonio Pallavicini Gentili1
- Antonio de Bonius1
- Appiano family1
- Archer Milton Huntington1
- Arno M. Voynich1
- Art ancien S.A.1
- Artemesia Piccolomini1
- Baldasarre Boncompagni1
- Baron Llangattock1
- Bartholus Blancellus1
- Beatrice de Fouar1
- Benediktinerinnenabtei St. Walburg1
- Benjamin Franklin Stevens1
- Bernardo Bembo1
- Beverly Chew1
- Biblioteca civica di Verona1
- Biblioteca del Seminario Arcivescovile1
- Bill Jackson1
- Bodleian Library1
- Breslauer and Meyer1