Hi Moishe

You can search in Sub-Carpatian Genealogy data base:  https://sub-carpathia-genealogy.org/
I made some search and was able to find 2 persons who might be a match. One is Weisz Fani who died in March 1889. The second is Weisz Feige Ruchel who dies in June 1888. Both of them died in Munkacs. You can ask for their Death Certificate. It costs 15$ each.

Good luck with your search

Ludwig Mauskopf