The Weser (IPA: [ˈveːzɐ]) is a river in north-western Germany. Forme at Hann. Münden by the tributary (confluence) of the Fulda and Werra, it flows through Lower Saxony, then reaching the historic (Hanseatic League) port city of Bremen before emptying into the North Sea 50 km further north at Bremerhaven, which is also a seaport. On the opposite (west) bank is the town of Nordenham at the foot of the Butjadingen Peninsula; thus, the mouth of the river is located in Lower Saxony. The Weser has an overall length of 452 km. Together with its Werra tributary, which originates in Thuringia, its length is 744 km.