Krosno Odrzańskie

Krosno Odrzańskie is a historic town located in the Lubusz Voivodeship of western Poland, situated strategically on the east bank of the Oder River at its confluence with the Bóbr. While the settlement was first mentioned in 1005 when Duke Bolesław I Chrobry constructed a fortress there, the stone castle that defines its medieval heritage was erected by Duke Henry I the Bearded around 1201. This architectural stronghold served as a critical defensive point on the western border of the Polish kingdom against the Holy Roman Empire during the eleventh through thirteenth centuries. The town officially received its charter in 1201, solidifying its status as a key administrative and military center within the Duchy of Silesia under the ruling Silesian Piasts.

The site holds profound historical significance, notably as the place where Duke Henry I died in 1238 and where his widow, Hedwig of Andechs, sought refuge during the devastating Mongol invasion of 1241. Over the subsequent centuries, the castle and town changed hands multiple times due to shifting political alliances and inheritances. Following the extinction of the local Piast line in 1476, control passed to the House of Brandenburg, marking the beginning of a long period of German influence known historically as Crossen an der Oder. These transitions reflect the region's turbulent history as a contested borderland between Polish and German powers.

Today, the ruins of the Piast Castle remain a prominent landmark within the town, which serves as the capital of Krosno County. Although the fortress has suffered from centuries of conflict and neglect, it stands as a testament to the area's medieval origins and strategic importance. The town currently functions as a local cultural and administrative hub with a population of over eleven thousand residents. Visitors are drawn to the site for its connection to early Polish statehood and the dramatic events involving the Piast dynasty, making it an essential destination for those interested in the architectural and political history of the Oder river region.