Mundburg, Medieval castle ruins in Müden, Germany.
Mundburg is a medieval castle ruin in Müden located on a sandy island in the flat Aller lowlands. The remains stand west of Gut Dieckhorst and rise only slightly above the surrounding terrain.
Bishop Bernward built the structure around 1013 with Emperor Otto III's approval as part of a defensive network against Norman and Slavic raids. The stronghold then served for centuries as a local center of power before gradually falling into ruin.
The castle was once a center where bishops and local rulers conducted important affairs and exercised their authority over the surrounding lands. Visitors can sense how smaller strongholds like this one served as seats of power before larger cities emerged.
The ruin sits in open flat terrain and is accessible from various directions, though onsite infrastructure is limited. Wear sturdy shoes and expect minimal signage, as orientation at the site requires local knowledge or prior planning.
The name derives not from 'mouth' despite its location near river confluences, but means 'protection castle' in medieval German. Archaeological investigations revealed that the exact location remained unclear for centuries until recent research confirmed it definitively.
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