Former Owner
- Holmcultram Abbey1
- Holt family1
- Homer D. Crotty2
- Homer Lewis Bartlett68
- Hooker Wix1
- Horace de Landau3
- Horst-Joachim Unverfähr1
- 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 Goodhart22