[4] Earliest reports of the castle's existence describe a small fortress with a moat and fortified walls, built in 1235 during the reign of Henry I the Bearded.

In 1370, Prince Ludwik I extended the castle and constructed its chapel which includes the Piast dynasty mausoleum.

[2] During Frederick II of Legnica's reign in 1544, more buildings were added to the castle, with the construction completed in 1560.

Modifications in design were from the Gothic style fort to the Renaissance type of architecture in Silesia.

The interior of some rooms in the eastern wing, which are in the Renaissance style on the ground floor, are well preserved.

Dating to the 14th century, Poland's only "perfectly preserved medieval hunting bow" is an archeological find from excavations at Brzeg's Mleczna Street.