Duchy of Wroclaw

State · 1169–1201 CE · at its largest around 1169 CE

Silesian duchy centred on Wroclaw, held by descendants of Wladyslaw II the Exile, which was the leading duchy of Silesia.

On its lands while it lasted

• Opole (c. 1177 CE): Capital of Duchy of Opole (1177–1304).
• Bytom (1200 CE): Capital of Duchy of Bytom (1285–1304).

More on Wikipedia.