The Kaukai (Obelytė) complex is on the left bank of the Peršėkė runlet. It has been dated back to the 11th century. The complex is set up of two mounds that are in two different villages, a pertinent of the castle (suburbium) and a subjacent village. The main mound was in the highland of the Perseke runlet left bank winding. The other mound, Obelytė, tree-covered and almost decayed now was on the right bank. A big territory of the pertinent of the castle had a garden and of farmstead. One can climb up the wooden steps to the Kaukai mound.References:
The Château du Haut-Koenigsbourg is situated in a strategic area on a rocky spur overlooking the Upper Rhine Plain, it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German kaiser Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.
The first records of a castle built by the Hohenstaufens date back to 1147. The fortress changed its name to Koenigsburg (royal castle) around 1157. The castle was handed over to the Tiersteins by the Habsburgs following its destruction in 1462. They rebuilt and enlarged it, installing a defensive system designed to withstand artillery fire.
The fortification work accomplished over the 15th century did not suffice to keep the Swedish artillery at bay during the Thirty Years War, and the defences were overrun.