Duchy of Silesia
Duchy of Silesia | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1138–1335 | |||||||||||||||||||
| Status | Province of Poland | ||||||||||||||||||
| Capital | Brassel 51°6′N 17°1′E / 51.100°N 17.017°E | ||||||||||||||||||
| Religion | Roman Catholic | ||||||||||||||||||
| Government | Feudal monarchy | ||||||||||||||||||
| Historical era | High Middle Ages | ||||||||||||||||||
| 1138 | |||||||||||||||||||
| 1146 | |||||||||||||||||||
• Racibórz split off | 1172 | ||||||||||||||||||
• Opole split off | 1172 | ||||||||||||||||||
• Głogów split off | 1177 | ||||||||||||||||||
• Głogów reintegrated | c. 1185 | ||||||||||||||||||
| 1241 | |||||||||||||||||||
• Lubusz split off | 1241 | ||||||||||||||||||
• Lubusz reintegrated | 1242 | ||||||||||||||||||
• Legnica split off | 1248 | ||||||||||||||||||
• Nysa split off | 1290 | ||||||||||||||||||
| 1335 | |||||||||||||||||||
| 1348 | |||||||||||||||||||
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| Today part of | Poland Czech Republic Germany | ||||||||||||||||||
The Duchy of Silesia (Silesian: Ślōnski firsztyntōm, German: Herzogtum Schlesien, Czech: Slezské knížectví, Polish: Księstwo śląskie) with its capital at Wrocław was a medieval provincial duchy of Poland located in the region of Silesia.
Soon after it was formed under the Piast dynasty in 1138, it fragmented into various Silesian duchies. In 1327, the remaining Duchy of Vratislava as well as most other duchies ruled by the Silesian Piasts passed under the suzerainty of the Kingdom of Bohemia as the Duchies of Silesia. The acquisition was completed when King Casimir III the Great of Poland renounced his rights to Silesia in the 1335 Treaty of Trentschin.