Former Owner
- Antonio Cánovas del Castillo1
- Antonio Ubaldini1
- Antonio de Bonius1
- Arnold Jansen op de Haar1
- Athelstan Riley1
- August Merz1
- Austin, Jehan1
- Aḥmad ibn Mubārak Luṭf Allāh1
- Aḥmad ibn Muṣṭafá1
- B.S. Cron1
- Bartolomeo di Larione Martelli1
- Battista di Ser Cicco di Fermo1
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- Bergendal Collection1
- Bernard M. Rosenthal1
- Boies Penrose1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- C. W. S. Dixon1