Atyusz; died after 1233) was a Hungarian influential baron, the most outstanding member of his family, who served as Judge royal from 1215 to 1217, during the reign of Andrew II of Hungary.
[7] As the charter says, comes Abraham, son of Sebes, sold Zánka to his sister, which he had formerly inherited from Atyusz III, his brother-in-law.
Although the document is definitely a forgery, nevertheless historian Gábor Nemes accepts the information can be found on Atyusz's marriage, as the objective of the diploma's falsification is not affected from this side.
Two years later, Atyusz V was charged disloyalty by Ladislaus IV of Hungary, who confiscated his ownership, the Szentmiklós Castle and donated to Benedict III, Archbishop of Esztergom and his brothers, Dedalus, ispán of Zala County (1273–1274), Beke and Stephen.
[11] As he was loyal to Duke Andrew, he lost his political influence after 1203, when Emeric's brother rose up in open rebellion against the King at umpteenth time in the autumn of 1203.
[10] Only one charter preserved his first term as Ban, when Atyusz sent his pristaldus Lawrence Ajkai on the occasion of a legal transaction.
[20] Thus Andrew II was able to pay the royal court's huge debts, caused by the Fifth Crusade, on which Pope Innocent III forced him to organize.
[22] Atyusz released the earliest known charter issued by a Ban (preserved in Zadar), when judged over the Saints Cosmas and Damian monastery of Biograd na Moru (Hungarian: Tengerfehérvár) and the Knights Templar during a trial court.
[21] Atyusz III became embroiled in a conflict with Bartholomew, Bishop of Veszprém in 1232, which proved to be the first milestone towards the noble self-determination.
According to Bartholomew's accusation, Atyusz III had "unjustly and violently seized and retained the diocesan land of Wezmech, and he refused to give back".
Local nobles from Zala County, called royal servants, cited the lord and his potential witnesses in front of their own tribunal at three times, but Atyusz did not deign to answer them.
[23] The royal servants issued the so-called Kehida Diploma to call King Andrew II to recognise their verdict as compulsory, because Atyusz refused to give back the land to the Diocese of Veszprém and prevented by force pristaldus Andronicus Apáti to execute the judgment.