Arabia, History Of, Ghassan

The dynasty of the Ghassanids, though often called kings, were in fact Byzantine phylarchs (native rulers of subject frontier states). They had their headquarters well within the Byzantine Empire, a little east of the Sea of Galilee at Jabiyah in the Jawlan (Golan) area; but they controlled large areas of northwestern Arabia, as far south as Yathrib, serving as a counterpoise