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Keywords from Image Description:
Sachsenlager Sierhausen. Sachsenlager auch Rmerschanze bei Sierhausen Otto Piper Burgenkunde Mnchen Otto Piper PDold Castles in Landkreis Vechta Plans of castles in Lower Saxony Hill forts in Lower Saxony Early medieval castles in Lower Saxony Entwicklung der Burgen aus alteinheimischen Befestigungen