Thank you both very much, peters and kwroblewska. I will put this information in my ancestor's file.

Thank you so much Krystyna!

Thank you very much again for your help, this was very helpful. I searched for this village Potworzyn, but couldn't find anything. Could any of you tell me where it is? Or maybe its new name?

Many thanks to both Grazyna_Gabi and Nater_Stanislaw. Another step in my family tree deciphered, now I just need to translate this document. I have no words to thank you. Thank you very much!!!

I have the following information:
Szymon Grabowski and Marianna Iwańska were married in Łowicz św. Duch in 1835, the indexed files of https://genealodzy.pl/ have the code number 6, but there is no "SKAN" link in it. There are two indexes there and they form the following users Marek_Delert User ID ...