Former Owner
- Herbert Bloch1
- Herbert Watney1
- Hercules Silva1
- Hermann Suchier1
- Herschel V. Jones1
- Himmerod Abbey1
- Holmcultram Abbey1
- Holt family1
- House of Bentivoglio1
- House of Sforza1
- Hubert Palmer Greville1
- Hucks Gibbs, 1st Baron Aldenham1
- Hugo Philipp Waldbott-Bassenheim1
- Hákon Snæbjörnson1
- I. I. Middleton1
- Ignatius Molitor1
- Ioannis Gennadios1
- Ioannēs Grēgoropoulos1
- Isaac ha-Rofe ben Moses ibn Elezar1
- Isabel d'Oyembrugge de Duras1