Dannenberg is a town in the district Lüchow-Dannenberg, in Lower Saxony, Germany. It is situated near the river Elbe, approx. 30 km north of Salzwedel, and 50 km south-east of Lüneburg. Dannenberg has a population of 8,147 inhabitants (December 2010). Dannenberg is located on the German Timber-Frame Road. It is the seat of the Samtgemeinde ("collective municipality") Elbtalaue. The actual history of the town began with the construction of the castle (first mentioned in 1153) during the rule of Volrad I, Count of Dannenberg (1153–1169), who had been given the task of settling and securing the territory by Duke Henry the Lion. The Polabian Names for Dannenberg are Weidars and Woikam.