one more map with Schonwerth location for your files.http://lazarus.elte.hu/hun/digkonyv/topo/200e/30-50.jpg
top of the map line between large 30 and small 10, down to SCHOENWERTH; not to pass Markneukchn;
Graslitz is Kraslice; http://www.mapy.cz/#!x=12.492990&y=50.320067&z=13&am...
Your other location Ruhstadt should show up on the above map above location Schonau B by 218 yellow road Manesova;
Maneuver the map if the above directions did not come up right for you.