n the late 13th century a castle was erected on the slope of the hill called Góra Kalwaria. In 1301 Bolko I sold it to the knight of Dzbanów. The castle was destroyed during the Hussite wars in 1425. Probably it was also involved in the armed conflict between Czechs and Wrocław. It consisted of two parts: situated on a higher level, oval-shaped main castle and an outer castle, 30 metres away from the main castle, set on a plan of a shape resembling triangle, devoid of buildings made of stone or brick.

The part of the castle made of stone, 500 sq metres in area, was encircled by the wall 2 metres thick. In the south-east part of the wall there was a gate 1, 9 metre wide. Close to the gate a free-standing cylindrical tower was situated. It was 10 metres in diameter. The area along the north and west parts of the outer wall was occupied by the row of the buildings. 

Plan zamku zaczerpnięty z 'Leksykonu zamków polskich' [Source]

In the course of the archeological research almost 31 000 items were digged up. e.g. nails, heads of bolts, buckles, clasps, knives, padlocks, spur, a bronze plaque with the duke's mitre topped by a crown and a star, and also silver coins, treasure dating back to the times of Jan I Luksemburski.