duchy (The Duchy of Warsaw (1807-1814)) (Q800)
administrative unit of the 4th level of the secular administration system: The Duchy of Warsaw (1807-1814)
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | duchy (The Duchy of Warsaw (1807-1814)) |
administrative unit of the 4th level of the secular administration system: The Duchy of Warsaw (1807-1814) |