The existence of the castle in Chojnów can be guessed already in the 90s of the thirteenth century, some references come from the years 1329 and 1331. It was not an integral part of the city walls, but was located in close proximity to the south-west of the town. It was separated by the Młynówka stream and the wall. In 1418 the castle was destroyed by Hussites, in 1508 it was destroyed by a fire, and in 1510 one of the castle towers collapsed. Therefore, in the years 1546-1547, prince Frederick III rebuilt the stronghold into a Renaissance residence. Its partial demolition occurred a few years after the fire in 1762. The remaining castle buildings, repeatedly transformed, completely lost their original appearance.