| Nation | Sovereign | Additional Info |
| Holy Roman Empire (to 1807) | |
| Austrian Empire (from 1804) | |
| Russian Empire | |
| Kingdom of Prussia | |
| United Kingdom of Great Britain and Ireland (Sovereign) | |
| United Kingdom of Great Britain and Ireland (Prime Minister) | |
| United Kingdom of Great Britain and Ireland (Prime Minister) | |
| United Kingdom of Great Britain and Ireland (Prime Minister) | |
| United Kingdom of Great Britain and Ireland (Prime Minister) | |
| United Kingdom of Great Britain and Ireland (Prime Minister) | |
| Papal States | |
| Ottoman Empire | |
| Ottoman Empire | |
| Ottoman Empire | |