Former Owner
- Andrea della Valle1
- André Rooryck1
- Bartholus Blancellus1
- Benjamin Franklin Stevens1
- Bernardo Bembo1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Domenico Levera1
- Domenico Silvio Passionei1
- Edward E. Ayer1
- Ercole Silva1
- Erik von Scherling1
- Ermolao Barbaro1
- Ezra Butler McCagg1
- Farley P. Katz1
- Foliophiles1
- Francesco Giovio1
- Frederick North, 5th Earl of Guilford1
- Friedrich von Schennis1
- George M. Millard1
- George Spencer, 2nd Earl Spencer1