Mathias Eckstein - Siblings and parents?

his parents were Herrmann an Chaya in Liben (see his familianten record)

Mathias Eckstein

Stefan

Markus Eckstein

lived with his wife Barbara in the same house in Liben #34

I think he was a brother of Mathias

Stefan,
what about merging the parents of Mathias and Markus?
I think Chaya is Ewa and Herrmann is Herschmann, jews often made such a change of name...
Tom

Done