A couple of years ago I found out that I have some Jewish ancestry when investigating my family's history. I know that my great grandfather perished in the holocaust, but I was led to believe that it was not because he was Jewish but simply one of the other types of "undesirables" (people from my parents' homeland were killed alongside Jews so this was highly plausible).
After some research I found that he was Jewish. Though this relative is on my mother's side, he is the father of her father so from my understanding this would mean I am not considered Jewish by Orthodox standards (I am looking to find out more information about my other relatives but most I've researched so far do have church records, so it seems unlikely they were Jewish).
Despite not being considered Jewish, I would nevertheless like to learn more about Jewish traditions and beliefs so I can understand more about my background and get a sense of what life was like for someone like my great grandfather growing up. I was wondering if there are introductory resources that talk about Jewish belief and tradition in the Balkans as I would love to read them.