The chapel created in 1291 by Cistercian monks assumed its present shape in 1440 when it was rebuilt as a St. Mary's brick church. The half-timber framed nave (oak beams with brick fillings) was constructed in the 16th and 17th centuries with the choir annex added in the 18th century. Later restoration works served to expose paintings from around 1470 on the walls and the triumphal arch. The oldest decorative features are the Gothic triumphal crucifix (around 1500) and the Gothic carved altar created in 1520 at Antwerp. This altar is considered one of the truly outstanding sacred works of art anywhere in Northern Germany and bears close stylistic resemblances to the Bordesholm Altar at Schleswig by Hans Brüggemann and Jan Bormann’s altar for the Güstrow parish church made in Brussels at roughly the same period. The altar was originally acquired by wealthy merchants from Stralsund for a local Church and found its way to its present location only in 1708. The pulpit was originally made for another church, too, probably again in Stralsund, and the and brass chandelier also comes from there.
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.