Argead dynasty
Another theory supported by modern scholars, following the ancient author Appian, is that the Argead dynasty actually descended from Argos Orestikon in Macedonia, and that the Macedonian kings claimed a descent from Argos in Peloponnese to enforce their Greekness.According to Thucydides, in the "History of the Peloponnesian War", the Argeads were originally Temenids from Argos, who descended from the highlands to Lower Macedonia, expelled the Pierians from Pieria and acquired in Paionia a narrow strip along the river Axios extending to Pella and the sea. They also added Mygdonia in their territory through the expulsion of the Edoni, Eordians, and Almopians.