Former Owner
- Benediktinerinnenabtei St. Walburg1
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- 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
- Burg Kreuzenstein1
- Bāpaṭa Kṛṣṇabhaṭa1
- Bīkānera Anūpa Saṃskr̥ta Pustakālaya1
- C. W. S. Dixon1
- Caesareum Societatis Jesu Collegium Viennense1