Former Owner
- Antonio Ubaldini1
- Antonio de Bonius1
- Appiano family1
- Archer Milton Huntington1
- Arno M. Voynich1
- Art ancien S.A.2
- Artemesia Piccolomini1
- Augustinus de Cagnolis1
- Avraham Yedidiah Levi1
- Avraham Ḥai Morpurgo1
- Baldasarre Boncompagni1
- Baldassarre Boncompagni3
- Baron Llangattock1
- Bartholus Blancellus1
- Basilica of Sant'Ambrogio1
- Beatrice de Fouar1
- Benediktinerinnenabtei St. Walburg1
- Benjamin Franklin Stevens1
- Bernard M. Rosenthal12
- Bernard Quaritch Ltd11