The documents of the Szadeczky archives are collected basically from the 16th- 19th centuries but a few records originating from the times before 1526 can also been found there. There are only five documents, which deriving from the Pre-Mohacs Collection. But the researchers can find some records connected with the areas and persons mentioned in the documents of the Szadeczky archives in other collections. Of these four charters are relevant to the Arpadian period. The oldest one is from 1259, issued by King Bela IV. Therefore, despite some earlier objections to the dating of the above-mentioned charter of privilege, researchers have not doubted its authenticity, because its irregularities can be explained. Studying the particulars of the set of documents from the Arpadian period, it can be stated that they show some contradictions as to their contents. So the authenticity of the royal deed from 1259 is doubtful. As regards the conclusions of this paper, the above-mentioned charter should be regarded as a record of uncertain authenticity rather than a real royal charter from the age of King Bela IV
