The redrawing of boundaries in 1945 -- in particular the relocation of the German-Polish border to the Oder-Neisse line -- divided the town , the right bank becoming part of Poland , and named Zgorzelec in 1948 , while the main portion became part of the German state of Saxony . The redrawing of boundaries in 1945 -- in particular the relocation of the German-Polish border to the Oder-Neisse line -- divided the town . The right bank became part of Poland and was named Zgorzelec in 1948 , while the main portion became part of the German state of Saxony .