Nienburg Abbey

Nienburg was for centuries on the extreme eastern edge of the settled territory of Germany. With the aim of converting the then Sorbian population of the region to Christianity, the Benedictine abbey that had been founded in 970 in Thankmarsfelde in the Harz Mountains was transferred in 975 to the fortress of Nienburg, originally built by order of Charlemagne. The construction work necessary to convert the building took over 30 years and the newly built abbey church, which is still extant, was eventually dedicated on 8 August 1004 in the presence of Emperor Henry II, who was at the time waging war against the Poles. At the same time the town of Nienburg received the rights of holding a market and of minting coins.
The abbey was declared a Reichskloster by Emperor Otto II and soon became one of the wealthiest monasteries of the region. It owned many estates and villages , but they were isolated and scattered between the Harz and the Lausitzer Neisse, and the last threat against the possessions of Nienburg Abbey from rebellious Sorbs was as late as 1115.

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