German Bishops' Conference
In the altar are found relics of the martyrs Boniface, Clement and Blandinia. The church consecration festival was set at that time to the first Sunday after the autumn Ember days (these being the Wednesday, Friday and Saturday in the week after Holy Cross Day on 14 September). Since the German Bishops' Conference in 1872 moved the festival, the third Sunday in September has been set as the deadline for the kermis.