Did you ever receive information on this? I have a similar situation!
I'm not sure if you are referring to my post about Polish citizenship and having a grandmother born in Austria Hungary or not.
I've since found out that Polish lands and Hungairan lands were ruled by two different systems and they countires were sort of divided in reality although it was called,Austria/Hungary.
I would in my case probably just go for HU citizenship through being married to a HU and by living in Hungary for so long.
No idea if they would excpet me or not but in any case, I'm a perm resident here so that's not to bad.
Your best bet is to lok up old church records from the places your relatins came from if possible.
Those records are the best way to prove births, deaths ect.
Best of luck.
My situation was odd.
I was just messing around looking up the meaning of my maiden name in Plish when I got onto ne of those ancestory sites.
Saw a message that was 5 years old by a US cousin who was looking for relations of my grandfather.
Decided to contact this lady and found out yes, her fave great-aunt was my grandfahter's auntie.
We fianlly all hooked up in Poland for a reunion.
Very strange and meant t be.
I had no idea exactly where my father and grandmother were born before then. The immigration agent in the US messed up the spelling so badly on their documents that it wasn't even spelled close to what it really is.
Fund the place after 59 years!
My father lost all his old papers in the 1980's when his US/HU wife( my step-mom) trhrew them away.
He passed away and I never really knew where he was born exactly until I found that distant cousin online.
If it's meant to be it will happen.
One of our US cousins also came to Poland for our reunion.,He did a chart of the fmaily geneology for everyone.
He is the one who filled in many missing links. Also the cousin I found on that ancestory site, she really was into knowing who was realted to you.
She paid to have letters translated from Polish/Ruysn into English.
Read about 40 some years worth of letters between my grandfather and his aunt.
First it felt odd to read private mail but then again, it was all in the family.
This one cousin travled several times per year to do the family tree. He did private investigations for pay to support his hobby of finding our family roots.
If you're family is from SE Poland and those clse by areas then it is a good change you are actually a Ruysn. If you have a "Slavic" surname and your family was eastern Orthodox you probably are Ruysn, IN Poland they are called, Lemko people. Really just ,"highlanders" a sub group of eastern slavs.
Have many culture customs like in Hungary even their clothing is almost the same but with a sort of Ukrainian/Russian twist.
You maight check out some online sites for Ruysn /Lemko people because they have surnames, listed and towns where many of these different families came from. They stayed pretty much in the same area for generations and even married kissing cousins.
Just an idea if you're at a loss about where to start your research.
I really was taken aback when i found that message online.