Former Owner
- Charles-Gilbert Morel de Vindé1
- Chartreuse Saint-Sixte de Rettel1
- Claude Augustin de Cosson1
- Clement VII1
- Clemente Carilli1
- Convent San Marco1
- Cornelius John Hauck1
- Cosimo de' Medici1
- Cristoferus Chrewczer1
- David McRoberts1
- David Solomon Sassoon1
- David Werner Amram1
- Dionysiĭ Vasilevich1
- Domenico Toschi1
- Donato Acciaioli1
- Donaueschingen court library1
- Earl of Chesterfield1
- Ebersmunster Abbey1
- Edmund Newman1
- Edmund Waterton1