DNA ethnicity


Hi. Thank you for accepting my onto your site.
I'm trying to trace my maternal family. My mother was born in Lwow, Poland and brought up Roman catholic. I have very little information but I have possibly found my grandparents marriage in a Roman catholic church. my DNA results disclosed 50% Jewish ethnicity. This is on my maternal side and presumably means that if not my mother my grand parents were Jewish. One hypothesis is conversion another is adoption. Sticking with the conversion theory....I think that there may have been a process of converting and therefore documents. Might anyone know about this process and how I could access such documents. Many thanks.

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