イオニアの反乱
In 492 BC, once the Ionian Revolt had finally been crushed, Darius dispatched an to Greece under the command of his son-in-law, Mardonius. Mardonius re-conquered Thrace and compelled Alexander I of Macedon to make Macedon a client kingdom to Persia, before the wrecking of his fleet brought a premature end to the campaign.