Former Owner
- Charles V of France1
- Charles William Dyson Perrins1
- Charles-Gilbert Morel de Vindé1
- Christopher Cheney1
- Christopher Tschudin1
- Chrétien-François II de Lamoignon1
- Cintāmaṇabhaṭṭa Guṇe1
- Clarence Lee Cline1
- Claude Augustin de Cosson1
- Claude d'Urfé1
- Coella Lindsay Ricketts14
- Collegium Germanicum et Hungaricum1
- Compagnia della Vergine Maria (Cento, Italy)1
- Comte André de Riaucourt1
- Cyrus Longworth Lundell1
- César de Missy1
- D. Andreas Parisino1
- Dadabhoy Framji Rustamji Darabji1
- Daniel B. Fearing1
- Daniel Itzig1