Grand Prince of the Hungarians
Grand Prince (Hungarian: Nagyfejedelem) was the title used by contemporary sources to name the leader of the federation of the Hungarian tribes in the tenth century. The grand prince (Nagyfejedelem) was probably elected by the leaders of the federation of the seven Hungarian tribes and the three Kabar tribes (dissident Khazar tribes) that joined the Hungarians before 830.
Source: Wikipedia — Grand Prince of the Hungarians (CC BY-SA 4.0)