Jadebusen
The extension of Jade Bight and its branches fragmented the free Frisian territory of Rüstringen in "Bant" in the northwest, most of which has disappeared in the waves, "Bovenjadingen" ('above the Jade') with the low moraine hills of Friesische Wehde in the southwest, Butjadingen ('outside the Jade') in the northeast, which was an island for almost two centuries, and "Stadland" ('bank-land'), which became a narrow island along the left bank of the Weser in 1384. The devastation by floods and the losses of land weakened the Frisian community. In the years about 1400, the Free City of Bremen tried to rule Stadland and Butjadingen. At the beginning of 16th century, all countries around Jade Bight were conquered by the Counts of Oldenburg.