Former Owner
- Charlier de Namur1
- Chartreuse Saint-Sixte de Rettel2
- Chartreuse de Montrieux-le-Vieux1
- Chester Carmelite Friary1
- Chintamani Misra1
- Chiswick Book Shop1
- Christian Friedrich August Günther1
- Christian Gottlieb Schwarz1
- Christopher Cheney1
- Chrétien-François II de Lamoignon1
- Church of St James, Sarsden1
- Church of St Peter, Chertsey1
- Château d'Anet1
- Cintāmaṇabhaṭṭa Guṇe1
- Cistercian Abbey of Beaupré1
- City College of New York1
- Clara von Vorssel1
- Clarence Howard Clark, Sr.4
- Clarence S. Bement6
- Claude Augustin de Cosson1