Take a look at this website and see if it clarifies where Neisse is: http://prussianpoland.com/neisse.html
Also found this explanation on another post from 2001: "I found that their is a River Niesse that empties into the Oder River and it begins in the vicinity of the Polish City or Town of Nysa which during German possession of the area and evidently in Bohemian Kingdom times was called "Niesse". The Niesse River marked one of the boundaries between Germany and Poland following WWII."
This info for Joseph is on Family Search: https://familysearch.org/tree/person/LZDL-Q55/details
You are on an Austrian message board. I think you need to find the Silesia message board.