Hungary was only founded by a queen.
Elizabeth of Bosnia ( -- January 1387 ) was queen consort and later regent of Hungary and Croatia , as well as queen consort of Poland . Hungary . Following centuries of successive habitation by Celts , Romans , Slavs , Gepids and Avars , the foundation of Hungary was laid in the late 9th century by the Hungarian grand prince Árpád in the conquest of the Carpathian Basin .