Former Owner
- Basilios Bessarion1
- Bentley Lyonel John Tollemache, 3rd Baron Tollemache1
- Bern Dibner1
- Bernard M. Rosenthal1
- Bernard Quaritch Ltd1
- Bertram Ashburnham, 4th Earl of Ashburnham1
- Burndy Library1
- Caesareum Societatis Jesu Collegium Viennense1
- Charles D. Humberd1
- Charles Marriette1
- Charles Seymour, 6th Duke of Somerset1
- Charles Singer1
- Clement XI1
- Collegium Germanicum et Hungaricum1
- Cristoferus Chrewczer1
- D. Andreas Parisino1
- D. D. Horatius Bosner1
- Davis & Orioli1
- Donaueschingen court library1
- Edward Clark Streeter1