Former Owner
- Carlo Morbio1
- Cecil Deedes1
- Charles Alexander de Cosson1
- Charles Burr1
- Charles Stephen Ascherson1
- Claude Augustin de Cosson1
- Clemente Carilli1
- Coluccio Salutati1
- D. Andreas Parisino1
- Damiano Muoni1
- Dean Putnam Lockwood1
- Edward Syddell1
- Edwin H. Fetterolf1
- Ernst Schultze1
- Federico Patetta1
- Francesco Rolandi1
- Francis Colman1
- Franz Joseph II, Prince of Liechtenstein1
- Frederick Arthur Heygate Lambert1
- Frederick North, 5th Earl of Guilford1