Is there an Old Castle near Lužna?

The new castle near Hanušovice (rather Raškova or Lužné) belongs to the largest castle grounds in Northern Moravia. His history is quite well known (although we can find a few question marks about him as well).
But the unsolved question remains where the old castle was. It is most often stated that the old castle was perhaps some castle or fortress, which was supposed to be the predecessor of the later Šumper castle. It was speculated somewhere that…