The Szózat ("Appeal" or "Summons") is considered Hungary's second national anthem, after the Himnusz. The official anthem is sung at the beginning of ceremonies, and Szózat is sung at the end.
Magyar Nemzetegyesítő Közösség honlapja
Hungary lost of her land & of her population. I'm assuming this would be the reason why it's very hard to find genealogy records This is just so disturbing to those whose Hungarian bloodlines are now severely compromised. Such a wrongdoing!