Surname query Romania/Hungary #hungary #romania


Hello folks,
I just finished watching Dr. Sacks Zoom lecture and am looking for the place to submit questions on JewishGen per her suggestion. 
I am looking for help in understanding our surname Hans/Hancz/Hantz from Kretchinev and Sighet.
From my research I have come to the conclusion that it is not a Jewish name at all. The farthest I can go back in my research is to 1750. 
The only Jewish people that I know with the name Hans are my own relatives.
The family story goes that once upon a time there was a man named Hans and when it was time for him to add on or choose  a surname he just said I will be Hans Hans!
Another part of this story that many of my cousins know is that they were all told over several generations that we came from Spain. 
This is borne out perhaps in the percentage of Iberian DNA that I and relatives have so I believe the story is true as do many of my cousins.
So at this point my two questions are what kind of a Jewish surname is Hans??
 And the second question is how can I ever trace back to Spain via Poland, Germany, the Netherlands and then Spain or Portugal? LOL
Anyway, I would be grateful if you could either pass this along to someone who might be able to help me, or respond and let me know where is the proper place to address my questions. 
Thank you so much for all that you do. 
My best, 

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