Former Owner
- Ariel Toaff1
- Arnold Jansen op de Haar1
- Arthur Kay1
- Athelstan Riley1
- August Merz1
- Austin, Jehan1
- Avraham ben ʻAlon1
- Aḥmad Rifʻat ibn al-Ḥājj Muḥammad Fākhir Z̤amāqavī1
- Aḥmad al-Mudarris1
- Aḥmad ibn Mubārak Luṭf Allāh1
- Aḥmad ibn Muṣṭafá1
- Aḥmad ibn ʻUmar Afandī1
- B.S. Cron1
- Baptist Union Theological Seminary1
- Bartolomeo di Larione Martelli1
- Battista di Ser Cicco di Fermo1
- Baḥrānī, Muḥammad ibn ʻAlī ibn Ḥaydar ibn Ḥasan ibn Ḥaydar1
- Benediktinerinnenabtei St. Walburg1
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1