A conference was organized with the title State-Church relations in East Central Europe between 1945 and 1989 – institutions and methods on October 18-20, 2012 by Historical Archives of the Hungarian State Security (Budapest), Posticum – Movimentum Iuventutis Christianae Association (Oradea). Location: Oradea, Posticum Cultural Centre, 26 Teiului Str. Margit Balogh, senior research fellow at our institute gave a lecture at the conference with the title Representations of the Holy See in the Soviet zone, 1944–1950.