The Duchy of Siewierz (1443-1790) (Q578)
administrative system covering the territory of the Duchy of Siewierz, which now includes the area around the cities of Siewierz, Czeladź and Koziegłowy
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The Duchy of Siewierz (1443-1790) |
administrative system covering the territory of the Duchy of Siewierz, which now includes the area around the cities of Siewierz, Czeladź and Koziegłowy |