Former Owner
- Hooker Wix1
- Hospital de Jesús Nazareno1
- House of Bentivoglio1
- House of Colonna2
- House of Liechtenstein1
- House of Mansfeld1
- House of Neville1
- House of Rochechouart1
- House of Rucellai1
- House of Sforza2
- House of Strozzi1
- House of Venier1
- Howard Gray1
- Howard Lehman Goodhart14
- Howard Lesnick1
- Howel Wills1
- Howell Wills1
- Hubert Palmer Greville1
- Hucks Gibbs, 1st Baron Aldenham3
- Hudson Gurney1