Preußische Ostbahn
In the following decades, the station was served by several other lines. The Prussian government built the Prussian Eastern Railway ("Preußische Ostbahn") to Konigsberg (now Kaliningrad in Russia). The section from Frankfurt via Küstrin (now Kostrzyn nad Odrą in Poland) to Kreuz (Krzyż Wielkopolski) was opened on 12 October 1857. The direct connection from Berlin via Strausberg to Küstrin opened in 1866 and the traffic from the Eastern Railway bypassed Frankfurt.