Kostrzyn nad Odrą is a town in Gorzów County, Lubusz Voivodeship in western Poland, close to the border with Germany.GeographyThe town is situated within the historic Neumark (Nowa Marchia) region at the confluence of the Oder and Warta rivers, on the western rim of the extended Warta mires. The town centre is located about 90km south of Szczecin.Until the end of World War II and the implementation of the Oder–Neisse line in 1945, the municipal area also comprised the Küstrin-Kietz suburb on the west bank of the Oder river, which today is part of the German Küstriner Vorland municipality. The former town centre, the Küstrin fortress located on the headland between the Oder and Warta rivers, was destroyed in the war and not rebuilt. Today Kostrzyn's central area is located around Kostrzyn railway station east of the Warta mouth.HistorySettled since the Bronze age, the area from about 960 to 1200 was held by the Piast dukes of Poland, who had a gord (burgwall) laid out in the borderlands with the Pomeranian tribes in the north. Duke Mieszko I used Kostrzyn's strategic location as a staging area during his expedition to the Battle of Cedynia in 972. Likewise, his successor Bolesław I the Brave from 1002 also prepared here for conquests and battles in the German–Polish War against King Henry II.