Former Owner
- Benediktinerinnenabtei St. Walburg1
- Benoît Le Court1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- Bergendal Collection1
- Bernard M. Rosenthal1
- Boies Penrose II1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- C. W. S. Dixon1
- Caesareum Societatis Jesu Collegium Viennense1
- Carl Alphons Geigy-Hagenbach1
- Carleton Rubira Richmond1
- Cecil Deedes1
- Charles Alexander de Cosson1
- Charles D. Humberd1
- Charles E. Roseman Jr.1
- Charles Hurleston1
- Charles Kothen1
- Charles Louis Adelaïde Henri Matheron Curnieu1
- Charles Marriette1