Former Owner
- B.S. Cron1
- 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
- Bergendal Collection1
- Bernard M. Rosenthal1
- Bhacaṃbhat1
- Bhatta Narayana1
- Bhauruji, Pandit1
- Bhaṭṭaśivākānta Lakṣmīkānta1
- Bhaṭṭaṃbhaṭṭa1
- Bhālacandra Gaṇeśa1
- Boies Penrose II1
- Bonvesino, Marco1
- Brahmānaṃdatīrtha1
- Brinton, Daniel G. 1837-18991
- Budapest University of Jewish Studies1