Hmmm - not sure if there's a connection...
I am researching Frantiska Cizkova (female form of Cizek, so her father was a Cizek), married to Josef Junger. had daughter Ruzena (Rose) Jungrova. she married Viktor Nemec (form of Nemetz, and other spellings). She was my grandmother. if this sounds like a possible link, please let me know and we can chat. thanks!