Former Owner
- Basilica Gößweinstein1
- Beatrice de Fouar1
- Beauvais Cathedral1
- Benetto Spinelli1
- Betty Freudenheim1
- Biblioteca Trivulziana1
- Bibliotheca Philosophica Hermetica1
- Breslauer and Meyer1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Brudenell family1
- Byron Reed1
- C Traylen Bookshop1
- C. Duca Visconti Modrone1
- C.B1
- Cecil H. Clough1
- Chapelle du monastère du Carmel de Nantes1
- Charles Brodrick1
- Charles Bruce, 3rd Earl of Ailesbury1
- Charles Ede1