Former Owner
- Charles William Dyson Perrins1
- Chartreuse Saint-Sixte de Rettel1
- Christopher Cheney1
- Christopher Pease, 2nd Baron Wardington1
- Church of St James, Sarsden1
- Clarence Howard Clark, Sr.1
- Claude Le Muet1
- Clemente Carilli1
- Coella Lindsay Ricketts1
- Cologne Charterhouse1
- Conradus Eerens1
- Cornelius John Hauck1
- Cyrus Adler1
- D. Andreas Parisino1
- Daniel Itzig1
- Davis & Harvey1
- Davis & Orioli1
- Dawson Turner1
- Dean Putnam Lockwood1
- Duprès, Marguerite1