Former Owner
- Antonio Ubaldini1
- Arenburg1
- Assemani family1
- Athelstan Riley1
- August Merz1
- Avraham Yedidiah Levi1
- B.S. Cron1
- Baldassarre Boncompagni1
- Basilica of Sant'Ambrogio1
- Benetto Spinelli1
- Bertram Ashburnham, 4th Earl of Ashburnham1
- Biblioteca Trivulziana1
- Bill Ward1
- Birgittinessenklooster Mariënwater1
- Breslauer and Meyer1
- Brinton, Daniel G. 1837-18991
- Bristol Baptist College1
- Byron Reed1
- Bākīr ibn Muṣṭafá Fūṭī1
- C. Bruscoli1