Former Owner
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- Bergendal Collection1
- Bernard M. Rosenthal1
- Bernardo Bembo1
- Beverly Chew1
- Biblioteca Trivulziana1
- Branners Bibliofile Antikvariat1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Byron Reed1
- C Traylen Bookshop1
- Catherine de' Medici1
- Cecil Brent1
- Chapelle du monastère du Carmel de Nantes1
- Charles Brodrick1
- Charles Ede1
- Charles Porterfield Krauth1
- Charles Stephen Ascherson1
- Charles Stuart, 1st Baron Stuart de Rothesay1