Obtaining the Greek citizenship for Jews outside of Greece[edit] The Greek Parliament has decided to give the greek citizenship back to all Holocaust survivors who have lost their Greek citizenship when leaving the country.[52] Those, who are born outside of Greece to either one or both Greek parents, or even one or more Greek grandparents, are entitled to stake a claim to their right to a Greek citizenship through their ancestor(s) born in Greece. For the process of obtaining one’s Greek citizenship, there is no need to prove the religious denomination of the ancestors.[53]