[1] Presumably, the first Kobryn castle (detinets) was founded in the 11th century by the heirs of the Kiev prince Izyaslav on the island at the confluence of the Kobrinka and Mukhavets rivers.

[1] The appearance of castles and their equipment can be established basing on their 16th century inventories.

The Lower Castle was protected by 5 towers, gorodnyas [ru] and a parkan.

[1] According to the inventory of 1597, the castle's artillery consisted of 2 cannons and 5 serpentines [ru].

Of small arms there were 16 gakovnitsas [ru], 17 hand cannons and 2 cues.