Grüner family may descend from one of the warriors together with king Dévadád called Ener-Garawa son of A'eza-Bawa - Byzás,possible from the family of Poseidáón that is of A-wa-ya-se-pa,of whom the city of Byzántion was named - maybe in closer relation with ener-gurage in Aithiopia as well.
Jews and christians call them Dawid, Naaray and 'Azbay and Yosef.
Balázs Déri