Former Owner
- Buxheim Charterhouse1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Carlo Francesco Frasconi1
- Cecil H. Clough1
- Champmol1
- Charles Brodrick1
- Charles Hurleston1
- Charles Marriette1
- Charles William Dyson Perrins1
- Charles-Gilbert Morel de Vindé1
- Chartreuse Saint-Sixte de Rettel1
- Christopher Cheney1
- Church of St James, Sarsden1
- Clarence Howard Clark, Sr.1
- Claude Le Muet1
- Clemente Carilli1
- Coella Lindsay Ricketts1
- Cologne Charterhouse1
- Conradus Eerens1
- Convento di San Paolo1