Former Owner
- Henry Pelham-Clinton, 7th Duke of Newcastle1
- Henry William Poor1
- Herbert Reichner1
- Hercules Silva1
- Herschel V. Jones1
- Horace de Landau1
- House of Bentivoglio1
- House of Colonna1
- House of Strozzi1
- Howel Wills1
- I. I. Middleton1
- Ioannis Gennadios1
- Ioannēs Grēgoropoulos1
- Isabella d'Este1
- J. A. Dortmond1
- J. A. Shanley1
- J. Marstili1
- J. Martini1
- Jacob Henry Burn1
- James Ellsworth1