Former Owner
- Church of St Peter, Chertsey1
- Château d'Anet1
- Cintāmaṇabhaṭṭa Guṇe1
- Cistercian Abbey of Beaupré1
- City College of New York1
- Clara von Vorssel1
- Claude Augustin de Cosson1
- Claude Bourelier1
- Claude Joseph Constant Despine1
- Claude Le Muet1
- Claude d'Urfé1
- Clement VII1
- Clement XI1
- Clemente Carilli1
- Cloître de la Chartreuse du Val de Bénédiction1
- Clément de Renesse-Breidbach1
- Coggeshall Abbey1
- Collegium Agennensis societatis Jesu (Agen, France)1
- Collegium Germanicum et Hungaricum1
- Collège Saint-Clément1