Belyak was a fief or administrative subdivision in Medieval Volga Finnic states.
Etymology The same as beylik, equivalent of county in other parts of Europe.
Medieval Volga Finnic States
Temnikov Principality and Mordvin Horde were divided into belyaks. After Russian Colonization they transformed into uyezds, modern day raions and aimaks in Mordovia. See also Aimak – administrative subdivision in Mordovia El, ancient Volga Finnic term for country, state. See Mari El, Udmurt Elkun, Moxel (Mokshaland)
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