Dannenberg is a town in the district Lüchow-Dannenberg, in Lower Saxony, Germany. It is situated on the river Jeetzel, approx. 30 km n…Dannenberg is a town in the district Lüchow-Dannenberg, in Lower Saxony, Germany. It is situated on the river Jeetzel, approx. 30 km north of Salzwedel, and 50 km south-east of Lüneburg. Dannenberg has a population of 8,147 inhabitants as of December 2010.