Very little is known about the first five kings of Macedonia (or the first eight kings depending on which royal chronology is accepted) [REF].
After Darius I of Persia () launched a military campaign against the Scythians in Europe in 513 BC, he left behind his general Megabazus to quell the Paeonians, Thracians, and coastal Greek city-states of the southern Balkans [REF].