It is known that, in its first stages, the building was serviced by a priest named Thomas (died 1410), whose grave is located in the choir area [REF].
Its altar originally featured a single column, but its role in supporting the entire central structure - on the model of German cathedrals built by Hans Stettheimer (a view expressed by researchers such as Ernst Kühlbrandt and Antal Hekler) is under dispute [REF].