chernyakhovsk, insterburg castle

wall ruins building brick winter rock wood town architecture facade history brickwork fortification roof village temple chernyakhovsk castle burg kaliningrad city founded master teutonic dietrich altenburg river inster settlement unsetrapis destroyed military campaign nadrovia belongs water flowed ring east chernuppe small stream strong pressure mill pond north moat built forces conquered prussians leadership konigsberg exact information time transformation wooden stone originally preserved burned lithuanian skirgail1 war prussian cities foundation masonry large field stones survived fires destruction german