Former Owner
- Henry Probasco5
- Leo Olschki5
- Luigi Celotti5
- Matteo Luigi Canonici5
- Morris H. Morgan5
- Robert Garrett5
- Charles Sumner4
- Giuseppe Martini4
- Henry Huth4
- Jacques Rosenthal4
- Lawrence J. Schoenberg4
- Samuel Allen4
- William Morris4
- Abbey of Morimondo3
- Acton Griscom3
- Alfred Henry Huth3
- Ambroise Firmin Didot3
- John Rolls, 1st Baron Llangattock3
- Leonello d'Este, Marquis of Ferrara3
- Mary W. T. Dickinson3