Former Owner
- Arnold Jansen op de Haar1
- Arthur Brölemann1
- Baldasarre Boncompagni1
- Baldassarre Boncompagni1
- Bartholus Blancellus1
- Benediktinerinnenabtei St. Walburg1
- Bernardo Bembo1
- Bertram Ashburnham, 4th Earl of Ashburnham1
- Betty Freudenheim1
- Brayton C. Ives1
- Brudenell family1
- C. W. S. Dixon1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Caxton Club1
- Chapelle du monastère du Carmel de Nantes1
- Charles E. Roseman Jr.1
- Charles Spencer, 3rd Duke of Marlborough1
- Charles Spencer, 3rd Earl of Sunderland1
- Charles William Hamilton Sotheby1
- Christian Gottlieb Schwarz1