Our research group published the new volume of Collectanea Vaticana Hungariae. The "Regesta Supplicationum, 1522–1523. The Supplications Relating to the Kingdom of Hungary Approved under Pope Hadrian VI" by Bálint Lakatos is a collection of the supplications and requests addressed to the pope. The book was published under the cooperation of the Fraknói Research Group and the Hungarian Medieval Research Group. The first presentation of the book will happen during the third workshop of our research group, on 18 May 2018, at Pázmány Péter Catholic University, Sophianum I. floor room 111. at 16:00.