
The Early-Medieval site of Dorestad was located southeast of the province of Utrecht in the Netherlands close to the modern day town of Wijk bij Duurstede. The township was established at the base of a Roman fortress in the 7th Century and was situated near the northernmost Northern branch of the Rhine which splits into the Lek and the Kromme Rijn...
Found on
http://en.wikipedia.org/wiki/Dorestad

(from the article `Low Countries, history of`) ...of greatest import for the Low Countries. The attacks had begun immediately after the death of Charlemagne (814) in the form of plundering raids, ... ...been agricultural, often making use of the domain system. In the coastal areas, however, reduced labour requirements of cattle raising ...
Found on
http://www.britannica.com/eb/a-z/d/67
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