Zapadnaya Dvina is a river in the north of Eastern Europe, flowing through the territory of Russia, Belarus and Latvia. It is connected by the inactive Berezinskaya water system with the Dnieper River. The ancient names are Eridan, Rudon, Bubon, Rubon, Sudon, Khesin. The length of the river is 1,020 km, of which 325 km are in Russia, 328 in Belarus and 367 in Latvia.