Former Owner
- Carl Hermann Grabauer1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Caxton Club1
- Charles William Dyson Perrins1
- Christian Gottlieb Schwarz1
- Christophorus de Stinglhaim1
- Claude d'Urfé1
- Convent of San Domenico1
- Cortlandt F. Bishop1
- Couvent des pères Franciscains (Monte-Carlo, Monaco)1
- Cyrus Adler1
- Diego Llorente1
- Domenico Levera1
- Eberbach Abbey1
- Edgar J. Goodspeed1
- Edward Hailstone1
- Ercole Silva1
- Erik von Scherling1
- Ermolao Barbaro1
- Esteban Mendez1