My great-grandparents were:
Jan x3
Kacper
Genowefa x2
HelenaStanisława or
Czesława (I can't remember right now which one, but they were sisters and after my actual great-grandma died, the other sister married my great-grandad and became my grandma's step-mom so I always have trouble remembering which was which)
I always thought it was hilarious how many repetitions there were. I remember drawing my family tree in elementary school and putting down
Jan three times thinking "wow, it really was like that back then, no variety, no pizazz" xD
https://www.behindthename.com/pnl/109883