...also known as the Unterkirche, dates back to the 12th century and was once the church of the 'lost' village of Merklinghausen. It houses the miraculous image of "Our Lady of Merklinghausen", which attracts numerous pilgrims to Hallenberg every year, and
its patronal feast is on August 15, the Feast of the Assumption, which is celebrated every year on the following Sunday with the 'Mother of God's Day'. In the near future, an extensive interior renovation is planned and work has already begun.