Balga

Balga (Russian: замок Бальга; Polish: Bałga) was a medieval castle of the Teutonic Knights. Its ruins are in the Pogranichny municipality, Bagrationovsky District in Kaliningrad Oblast, Russia; located on the shore of the Vistula Lagoon north of Mamonovo, about 30 km (19 mi) southwest of Kaliningrad.