The Madron is a mountain known also as the Petersberg ("St. Peters' Mount"). It was occupied in ancient times, showing traces of Bronze Age settlement. A poorly documented monastic foundation dating from sometime in the 8th century and settled by monks from St. Peter's Abbey in Salzburg was destroyed by the Hungarian invasion of the early 10th century. A supposed resettlement in about 955 by refugee monks from Wessobrunn Abbey is equally poorly evidenced.