In 1276, Wimmis and Oberwil were given to the new Augustinian Därstetten priory. During the Middle Ages, two castles Festi and Heidenmauer were built above the valley floor. However no records of the castles are still in existence and both have fallen into ruin.
In 1276, Wimmis and Oberwil were granted to the new Augustinian Därstetten priory. During the Middle Ages, two castles Festi and Heidenmauer were constructed above the valley floor. However, no records of these castles remain, and both have been destroyed.