The Duchy of Silesia with its capital at Wrocław was a medieval duchy located in the historic Silesian region of Poland. Soon after it was formed under the Piast dynasty in 1138, it fragmented into various Silesian duchies. In 1327, the remaining Duchy of Wrocław as well as most other duchies ruled by the Silesian Piasts passed to the Kingdom of Bohemia as 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.
Silesia 1172–77: Fragmentation begins with Opole (green) and Racibórz (yellow) splitting off
Fragmentation of Poland in 1138: Duchy of Silesia under Władysław II
Silesia in 1248/49: Duchy of Legnica under Bolesław II Duchy of Wrocław under Henry III Duchy of Opole under Władysław
1248–1249
Silesia is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czech Republic and Germany. Its area is approximately 40,000 km2 (15,400 sq mi), and the population is estimated at 8,000,000. Silesia is split into two main subregions, Lower Silesia in the west and Upper Silesia in the east. Silesia has a diverse culture, including architecture, costumes, cuisine, traditions, and the Silesian language. The largest city of the region is Wrocław.
Image: Ksiaz w jesiennej scenerii
Image: Wrocław square
Image: Market Square Opole Southside 2019
Image: Spodek.4