↑Howatson, M.C. The Oxford Companion to Classical Literature. Oxford University Press, 1989, p. 339. "In historical times the royal house traced its descent from the mythical Temenus, king of Argos, who was one of the Heracleidae, and more immediately from Perdiccas I, who left Argos for Illyria, probably in the mid-seventh century BC, and from there captured the Macedonian plain and occupied the fortress of Aegae (Vergina), setting himself up as king of the Macedonians. Thus the kings were of largely Dorian Greek stock (see PHILIP (1)); they presumably spoke a form of Dorian Greek and their cultural tradition had Greek features."