if you have any lists of inhabitants or similar written research on the topic, I’d be happy to get a copy of it – my ancestors in Radzionków are
– his daughter Catharina * ca. 1774
– her husband Mathaeus Wilk * ca. 1763
At least Mathaeus Wilk owned land in Radzionków – apparently he bought the “Reder” farm, which is why he is sometimes called Mathaeus Reder or Mathaeus Wilk alias/vulgo Reder.
Have you considered urbaria and the Caroline cadastre in your research? Especially the Caroline cadastre might be older than the oldest land records.