Jusztinián György Serédi OSB was a Cardinal of the Roman Catholic Church and Archbishop of Esztergom and Prince Primate of Hungary. He helped save many thousands of Polish refugees, including thousands of Polish Jews, by helping Henryk Sławik and his associates, like József Antall Senior.

The Archdiocese of Esztergom–Budapest is a Latin Church archdiocese and primatial seat of the Catholic Church in Hungary and the metropolitan see of one of Hungary's four Latin Church ecclesiastical provinces.