Originally, the Kerker-Christi Chapel was part of the defensive structure built in the 15th century to protect the local population. The northern tower and parts of the wall were demolished in 1521 during the reconstruction of the church. By around 1740, the remaining tower had fallen into ruin. It was used to dispose of stillborn and unbaptized children, who were placed inside and covered with stones.
To remedy this undignified situation, Dean Rösner (1741–1781) had the tower rebuilt and transformed into a “Chapel of the Prison or Kerker of Christ.” Since the two World Wars, the chapel has also housed memorial plaques honoring the fallen soldiers.








