Oath of Bereg

The oath of Bereg (Hungarian: beregi eskü), also labelled as agreement at Bereg (Hungarian: beregi egyezmény), was a treaty signed between the Kingdom of Hungary and the Holy See in the forests of Bereg on 20 August 1233. In the document, King Andrew II of Hungary vowed that he would not employ Jews and Muslims to administer royal revenues, which caused a decade-long discord with the Holy See starting in the early 1220s, composing of diplomatic complaints and ecclesiastical censures. The document is also an important source for the history of salt trade in Hungary.