After World War II the town became part of Poland according to the Potsdam Conference and renamed to the Polish '' Wrzeszcz '' . Its German inhabitants either fled before the advancing Red Army or were expelled . The renaming was based on medieval records but caused the protests of the arriving Polish settlers as it was regarded unpronounceable and has a similarity to the Polish term '' " wrzeszczec " '' ( bellow )
Potsdam Conference
Potsdam Conference
Wrzeszcz