Former Owner
- Count Johann Nepomuk Wilczek1
- Couvent des pères Franciscains (Monte-Carlo, Monaco)1
- Cox Macro1
- Craven Ord1
- Cristoferus Chrewczer1
- Curt H. Reisinger1
- Cyrus Adler1
- D. Andreas Parisino1
- D. Manning1
- Dadabhoy Framji Rustamji Darabji1
- Dahīʹzādah1
- Dame Margery Byrkenhed1
- Damiano Muoni1
- Daniel B. Fearing2
- Daniel Itzig1
- Daniele Florio1
- Darvīsh Aḥmad Khākiyānī1
- David Eugene Smith121
- David Gordon Lyon1
- David McRoberts1