Former Owner
- Clement XI1
- Coella Lindsay Ricketts1
- Cortlandt F. Bishop1
- David Bee1
- Duke C. Visconti di Modrone1
- Foliophiles1
- Francesco Giovio1
- Fritz Finkenstaedt1
- Gaetano Schiepati1
- Garegnano Charterhouse1
- George C. Thomas1
- George Dawson Coleman1
- George Dunn1
- George F. Leighton1
- Giuseppe Bruschetti1
- Giuseppe Martini1
- Hans P. Kraus1
- Harold Baillie Weaver1
- Henry Charles Lea1
- Henry Probasco1