In the course of the Josephine church reform, St. Marx was desecrated and ultimately used for entirely different purposes. Following an extended period in which the church housed a workshop for the renowned Lasa stonemasonry school, the upper storey subsequently served as a rehearsal venue for the local brass band.
The church underwent a thorough restoration in 2000, which led to the discovery of long-forgotten fragments of valuable Gothic frescoes from around the year 1400.