Former Owner
- Charles Stephen Ascherson1
- Charles Sumner17
- Charles Towneley1
- Charles V of France1
- Charles, Prince of Soubise1
- Charles-Adrien Picard1
- Charles-Henri de Clermont-Tonnerre1
- Chartreuse de Val-Saint-Esprit1
- Christian Brevoort Zabriskie1
- Christian Friedrich August Günther1
- Christine Blondeau1
- Christopher Tschudin1
- Church of St James, Sarsden1
- Clement VII1
- Coella Lindsay Ricketts2
- Collegium Agennensis societatis Jesu (Agen, France)2
- Comte André de Riaucourt1
- Comte Chandon de Briailles1
- Convent San Marco1
- Cosimo de' Medici1