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During the  Ostsiedlung, Germans and Dutch settled east of the Elbe and Saale rivers, regions largely inhabited by Polabian Slavs. After the capture of territory along the Elbe and Havel Rivers in the 1160s, Dutch settlers from flooded regions in Holland used their expertise to build dikes in Brandenburg. From the 13th to the 15th centuries, Prussia invited several waves of Dutch and Frisians to settle throughout the country (mainly along the Baltic Sea coast)

In the early-to-mid 1500s, Mennonites began to move from the Low Countries (especially Friesland and Flanders) to the Vistula delta region in Royal Prussia, seeking religious freedom and exemption from military service. When the Prussian government eliminated exemption from military service on religious grounds, the Mennonites emigrated to Russia. They were offered land along the Volga River. Some settlers left for Siberia in search for fertile land. The Russian capital itself, Moscow, also had a number of Dutch immigrants, mostly working as craftsmen. Arguably the most famous of which was Anna Mons the mistress of Peter the Great.

Historically Dutch also lived directly East of the German border, most have since been assimilated (apart from ~40,000 recent border migrants), especially since the establishment of Germany itself in 1872. Cultural marks can still be found though. In some villages and towns a Dutch Reformed church is present, and a number of border districts (such as Cleves, Borken and Viersen) have towns and village with an etymologically Dutch origin. In the area around Cleves (Ger.Kleve, Du. Kleef) traditional dialect is Dutch, rather than surrounding (High/Low) German. More to the South, cities historically housing many Dutch traders have retained Dutch exonyms for example Aachen (Aken) and Cologne/Köln (Keulen) to this day.