Duchy of Bytom
State · 1285–1304 CE · at its largest around 1285 CE
Upper Silesian duchy around Bytom, carved out of the lands of Opole and ruled by a branch of the Piasts of Opole.
On its lands while it lasted
- Racibórz (c. 1285 CE): Capital of Duchy of Racibórz (1285–1304).
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