Former Owner
- Algernon Percy, 10th Earl of Northumberland1
- Andreas Weiss1
- Antiquarian Books of Boston1
- Antonio Laserna1
- Antonio Medin1
- Antonio Ubaldini1
- Arthur Annesley, 1st Earl of Anglesey1
- Arthur Hood, 1st Baron Hood of Avalon1
- Arthur Thomas Bannister1
- August Merz1
- Avraham ben ʻAlon1
- Aḥmad Rifʻat ibn al-Ḥājj Muḥammad Fākhir Z̤amāqavī1
- Aḥmad ibn Muḥammad ibn Ṣalāḥ al-Sharafī1
- Battista di Ser Cicco di Fermo1
- Battle Abbey1
- Benetto Spinelli1
- Bernard Quaritch Ltd1
- Bernard Serrigny1
- Bernardo Bembo1
- Bernardus de Pedio1