Former Owner
- Ashridge Priory1
- Athelstan Riley1
- August Merz1
- Augustinus de Cagnolis1
- Austin, Jehan1
- Avraham Yedidiah Levi1
- Aḥmad ibn Mubārak Luṭf Allāh1
- Aḥmad ibn Muṣṭafá1
- B.C. Barker-Benfield1
- Baldasarre Boncompagni1
- Bartholus Blancellus1
- Bartolomeo di Larione Martelli1
- Basilica Gößweinstein1
- Battle Abbey1
- Benediktinerinnenabtei St. Walburg1
- Benetto Spinelli1
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- Bergendal Collection1
- Bernard M. Rosenthal1