When the small house of God first appears in a document in 1362 as the chapel of Mary Magdalene, it is located with its associated hospital outside the city walls, before Salzwedel's gate. It isolates those who are sick with the frequently occurring epidemics or who are on their deathbeds. Two bricked-up pointed-arch windows in the east wall hint at their late Gothic origin. The last major remodeling was carried out in 1734, incorporating the Gothic building substance. The roof rider, which probably rang a sinner's bell, was replaced by the now existing massive tower with its baroque hood. The carved altar from the early 16th century depicting Anna Selbdritt was moved to St. Nikolai Church. From the furnishings, only remnants of the choir stalls from 1603 are preserved. After 1990 the chapel was converted for exhibitions. Today it houses a model that shows what Gardelegen looked like around 1600.