Former Owner
- Chasseigne family1
- Clarence Howard Clark, Sr.2
- Clarence S. Bement3
- Claude Augustin de Cosson1
- Clemente Carilli1
- Coella Lindsay Ricketts1
- Collegium Germanicum et Hungaricum1
- Coluccio Salutati1
- Count Johann Nepomuk Wilczek1
- Cristoferus Chrewczer1
- César de Missy1
- D. Andreas Parisino1
- Dahīʹzādah1
- Damiano Muoni1
- Daniel Itzig1
- Darvīsh Asʻad ibn ʻAbd al-Karīm ʻArab1
- Darvīsh Aḥmad Khākiyānī1
- David Eugene Smith141
- David McRoberts1
- David Solomon Sassoon4