Given that it's known that Facebook builds shadow profiles of non-users it seems hard to believe that they would give up the data of ex-users.

https://www.bustle.com/p/what-are-shadow-profiles-facebook-c...

"Oh yeah we deleted the account, you can't log in with that same email and password anymore so it's as good as gone!"

I am unfortunately not a EU citizen. But I would be very very very sad indeed if my data was not deleted.