Darius appointed Mardonius as one of his generals and, after the
Hellespont
.
Mardonius first attacked
Macedonia, which was soon added to the Persian Empire as a fully subordinate client kingdom, becoming also part of its administrative system.[5][6]
However, after these victories, Mardonius’ fleet was destroyed in a storm off the coast near
Artaphernes junior to lead the invasion of Greece in 490 BC, and though they were subsequently successful in capturing Naxos and destroying Eretria, they were later defeated at the Battle of Marathon
.
Second Persian invasion of Greece
Main article:
Destruction of Athens. Part of the archaeological remains called Perserschutt
, or "Persian rubble".
Mardonius came back into favour under Darius' successor Xerxes I, Mardonius' cousin and brother-in-law. Xerxes was at first not interested in renewing the war with Greece, but Mardonius, who had the most influence on Xerxes in all of Persia,[9] repeatedly tried to convince him that he must avenge Darius' defeat. This view was opposed by another of Xerxes’ advisors, Artabanus, who urged more caution in the matter. Herodotus, who portrays Mardonius as a somewhat evil adviser (as opposed to a number of other good advisers whose arguments are never followed), says that Mardonius simply wanted to become satrap (governor) of Greece and had a love for 'mischief and adventure'.[10]
He was present at the Battle of Thermopylae, and after the Persian defeat at the Battle of Salamis, he attempted to convince Xerxes to stay and fight yet another campaign. This time Mardonius could not persuade Xerxes, but when Xerxes left he did become governor of those parts of Greece that had been conquered by the Persians. He subdued Macedon, ruled at that time by King Alexander I, but Alexander himself gave valuable information about Mardonius' plans to the Athenians, saying that, as a Greek, he could not bear to see Greece defeated.
After the first part of the campaign directly under the orders Xerxes I, Mardonius remained in Greece with 300,000 elite troops, who fought in the last stages of the war, destroying