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Skizze Ruberberg . Skizze des Burgstalls Ruberberg Bodendenkmal von in Grsdorf einem Ortsteil der Gemeinde Tauche im Landkreis OderSpree in Brandenburg Sketch of the listed Burgstall german for former castle medieval fortification Ruberberg from in Grsdorf village of the municipality Tauche in the District OderSpree Brandenburg