Former Owner
- Holt family1
- Homer D. Crotty2
- Homer Lewis Bartlett46
- Hooker Wix1
- Horst-Joachim Unverfähr1
- House of Colonna1
- House of Liechtenstein1
- House of Mansfeld1
- House of Neville1
- House of Rochechouart1
- House of Sforza2
- House of Venier1
- Howard Gray1
- Howard Lehman Goodhart20
- Howard Lesnick1
- Howard Mayer Brown1
- Howel Wills1
- Howell Wills1
- Hubert Palmer Greville1
- Hucks Gibbs, 1st Baron Aldenham1