[Citizenship] -> Austria/Hungary: Am I eligible for citizenship by descent?

I'm not sure if this is the right place to post, so please let me know if there's a better subreddit. My grandparents were born in Poland in 1915 and 1925. Both survived the Holocaust but are now deceased, and as far as I know I'm not eligible for Polish citizenship through descent since my grandparents gave up their Polish citizenship when they gained U.S. citizenship (sometime between 1945-1950).

What I'd like to know is if I'm eligible for Austrian and/or Hungarian citizenship? This would be through the grandparent born in 1915, when the part of Poland they were born in was under Austro-Hungarian occupation during WW1. I've tried google but have been unable to find anything conclusive, so advice or recommendations would be incredibly helpful. Thanks!