The origins of the castle date back to 1237. The closed yard that was typical of Medieval castles has been preserved. The interior took on its Historicism design in the mid-19th century, but there are also more ancient elements such as the gate tower, the basic walls, the firing apertures, the vaulted structures, the window apertures, etc. The Jēkabpils Museum of History was installed in the castle in 1994, and it can be toured in the company of a guide or an audio guide.