A középkori horvát-magyar báni tisztség innen került volna az Észak-Balkánra és Közép-Európába?

http://forum.index.hu/Article/viewArticle?a=138988968&t=9156681

A bán egy perzsa méltóság, kifejezetten 'őr'-t, 'védelmező'-t jelentett, közigazgatási szinten egy-egy határtartomány vezetőjét.

https://en.wikipedia.org/wiki/Ban_(title)

The mainstream view of the time was mainly opposed by Stjepan Krizin Sakač, who emphasized that the word bajan is never mentioned in historical sources as a title, the title ban is never mentioned in such a form, and there's no evidence that Avars and Turks ever used a title closely related to the title ban. Sakač connected the Croatian bân with statements from two Persian dictionaries (released 1893 and 1903); the noun bàn (lord, master, illustrious man, chief), suffix bân (guard), and the Sasanian title merz-bân (مرزبان marz-bān, Marzban). He considered that the early Croats originated from the Iranian-speaking Sarmatiansand Alans. The view of the possible Iranian origin (from ban; keeper, guard), besides Avarian, was shared by the modern scholars like Vladimir Košćak, Horace Lunt and Tibor Živković.

https://en.wikipedia.org/wiki/Marzban

The title marzbān can be dated to the Parthian Empire, where in the frontier areas such as Nisa (1st century BC) are found titles mrzwpn (marzban), probably an officier in charge of the frontier troops, and dyzpty, an officier in charge of a fort. Some scholars consider that marzbāns existed during the reign of Darius I (550–486 BC) of the Achaemenid Empire. There is some uncertainty for the exact relationship between titles marzbān, spāhbed, kanārang, pāygōsbān (Parthian ptykwspn, Sasanian paygospān or padhospān) and istandar. The historical sources blur the distinction between the marzbān and spāhbed (army general or military governor), implying marzbān was a military title strictly limited to the frontier marches and provinces. The least clear is the distinction with kanārang, apparently an East-Iranian derivation ofmarzbān in the province Abarshahr in Central Asia. The pāygōsbān, meaning "guardian of the district", is an uncertain title, seemingly provincial military commanders or governors, while the marzbān meant "guardian of the borders, provinces". Perhaps the pāygōsbān lacked civilian duties. The istandar was the governor of an istan (province or district within a province)