The leader of a conspiracy of nobles to murder the false Smerdis, he legitimized his rule by marrying Atossa. He created the satrapy system, built the royal road from Susa to Sardis, allowed the Jews to rebuild Jerusalem, and conquered Thrace, but at the end of his life he was so disturbed by the Ionian revolt that he had a servant remind him constantly of his need to punish the Athenians. For 10 
The leader of a conspiracy of nobles to murder the false Smerdis, he legitimized his rule by marrying Atossa. He created the satrapy system, built the royal road from Susa to Sardis, allowed the Jews to rebuild Jerusalem, and conquered Thrace, but at the end of his life he was so disturbed by the Ionian revolt that he had a servant remind him constantly of his need to punish the Athenians. For 10 points name this Persian ruler whose efforts to crush Athens were stymied by the defeat of his commanders at Marathon and who bequeathed his desire of vengeance to his son Xerxes.
The leader of a conspiracy of nobles to murder the false Smerdis, he legitimized his rule by marrying Atossa.
{Darius I} [accept {Darius the Great}; prompt on {Darius}]