The Duchy of Siewierz (1443-1790) (Q578)
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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 |