Former Owner
- House of Strozzi1
- Hubert Palmer Greville1
- Hugh Roberts1
- Hugo Philipp Waldbott-Bassenheim1
- Huskan-ordi (Monastery in Muradiye, Turkey)1
- Hôtel Drouot1
- I. I. Middleton1
- Ioannis Gennadios1
- Irvine Masson1
- Isabel de Bellusseau1
- Isabella d'Este1
- Israel Gollancz1
- J. & J. Leighton1
- J. A. J. Barclay1
- J. A. Shanley1
- J. E. Schulte1
- J. M. C. Armbruster (Firm)1
- J. Martini1
- J. Techener1
- Jacopo Ripanda1