Former Owner
- Hans P. Kraus1
- Harrison Horblit1
- Henry Allan1
- Henry Maxwell, 7th Baron Farnham1
- Hieronymus Wilhelm Ebner von Eschenbach1
- James Lyell1
- Jean Jules Olinger1
- John Bohn1
- John D. Stanitz1
- John Frederick Lewis1
- M. Haimmiller1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Mario Maffei1
- Mary Augusta Strachey1
- Muṣṭafá Shāh ʻAlāʼī1
- Prince Augustus Frederick, Duke of Sussex1
- Samuel Allan1
- Saʻīd Danūkh1
- Thomas F. Richardson1
- William Ewart Gladstone1