 They may have returned from Asia Minor in old age, after 412 BC, when the Achaemenids took again firm control of the Greek cities of Asia, and they may have been expelled by the Achaemenid satrap Tissaphernes sometime between 412 and 399 BC.In effect, from 414 BC, Darius II had started to resent increasing Athenian power in the Aegean and had Tissaphernes enter into an alliance with Sparta against Athens, which in 412 BC led to the Persian conquest of the greater part of Ionia.Darius is said to have received the visit of Greek athlete and Olympic champion Polydamas of Skotoussa, who made a demonstration of his strength by killing three Immortals in front of the Persian ruler.