James I
| James I | |
|---|---|
| His Imperial Majesty (more...) | |
| King of Idaho | |
| Reign | 6 January 1890-27 May 1890 |
| Coronation | 6 January 1890 |
| Predecessor | Joseph Cooke (as President of Idaho) |
| Successor | William I |
| Emperor of the Northwest | |
| Reign | 18 March 1890-27 May 1890 |
| Successor | William I |
| Great Duke of South Idaho | |
| Reign | 6 August 1889-15 December 1889 |