The tribal-federation polity the Magyars established in the Carpathian Basin after their c. 895 migration (the honfoglalas, 'land-taking') under the Arpad dynasty, predecessor of the Christian Kingdom of Hungary.
Christianized under Grand Prince Geza and his son Vajk; elevated to the Kingdom of Hungary when Vajk was crowned King Stephen I around Christmas 1000/1 January 1001.
The atlas holds 3 border frames for Principality of Hungary — the shape you scrub through changes in 895 · 908 · 962.
Dedicated archaeological and historical study of the Magyar migration and settlement that founded this polity.