Former Owner
- Chiswick Book Shop1
- Christopher Cheney1
- Chrétien-François II de Lamoignon1
- Church of St James, Sarsden1
- Château d'Anet1
- Clarence S. Bement1
- Claude Joseph Constant Despine1
- Cloître de la Chartreuse du Val de Bénédiction1
- Collegium Agennensis societatis Jesu (Agen, France)1
- Comte André de Riaucourt1
- Comte Chandon de Briailles1
- Cornelius John Hauck1
- Cortlandt F. Bishop1
- Count Alexis de Golowkin1
- Couvent des Minimes (Clermont-Tonnerre, France)1
- Craven Ord1
- Cristoferus Chrewczer1
- Curt H. Reisinger1
- Daniele Florio1
- David Solomon Sassoon1