North European Plain North European Plain The North European Plain (, North German Plain, or "Mitteleuropäische Tiefebene", , Middle European Plain) is a geomorphological region in Europe, mostly in Poland, Denmark, Germany, Belgium, the Netherlands (Low Countries), and a small part of northern France and Czech republic. It consists of the low plains between the Hercynian Europe (Central European Highlands) to the south and coastlines of the North Sea and the Baltic Sea to the north. These two seas are separated by the Jutland Peninsula (Denmark). The North European Plain is connected to East European Plain, together forming the European Plain. The Northern
Jutland in c. 450 AD. The Angles themselves gave their name to the new emerging kingdoms called England (i.e., "Angle-land"). Saxons and Frisii migrated to the region in the early part of the Christian era. To protect themselves from invasion by the Christian Frankish emperors, the Danes built the Danevirke, a wall stretching across South Jutland from the North Sea to the Baltic Sea, beginning in the 8th century. The pagan Saxons inhabited the southernmost part of the peninsula at the Baltic Sea until the Saxon Wars in 772-804 AD in the Nordic Iron Age, when Charlemagne violently subdued them and