Mária Molnár, born in 1886, was the most notable Hungarian missionary of the Reformed Church in Hungary. She used the knowledge she acquired as a voluntary nurse during World War I in her mission work on the Manus and Pityilu Islands, ultimately becoming a martyr during the Pacific theater of World War II.
In October 2023, Bishop Zoltán Balog, Ministerial President of the Synod, visited Australia and Papua New Guinea together with a delegation of the President of Hungary, Katalin Novák.