Former Owner
- Bernard Quaritch1
- Bernardus de Pedio1
- Bertram Dobell1
- Birch & Son1
- Blenheim Palace1
- C.J. Spence1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Champmol1
- Charles Brodrick1
- Charles Butler1
- Charles Fontaine1
- Charles Joseph Harford1
- Claude Le Muet1
- Clement XI1
- Clément de Renesse-Breidbach1
- Cologne Charterhouse1
- Conradus Eerens1
- Convento di San Giusto alle Mura1
- Convento di San Paolo1
- D. D. Horatius Bosner1