Former Owner
- Clarence Lee Cline1
- Clarence S. Bement1
- Claude d'Urfé1
- Clement VII1
- Comte d'Aspremont-Lynden1
- Confraternity of the Five Wounds at the Church of Saint-Pierre-La-Tour, Le-Puy-en-Velay1
- D. Manning1
- Dame Margery Byrkenhed1
- Daniele Florio1
- David Laing1
- David Wolfe Bruce1
- Davis & Orioli1
- Dawson Turner1
- Diego Llorente1
- Diego de Arce y Reinoso1
- Domenico Levera1
- Donato Acciaioli1
- Dr. Brooks1
- Eberhard von Kniestedt1
- Ebersmunster Abbey1