When Alexander returned and told him what he had heard from the Athenians, Mardonius set forth from +Thessaly [22.25,39.5] (region), Greece, Europe Thessaly and led his army with all zeal against Athens [23.7333,37.9667] (Perseus)Athens;In the summer of 479. Mardonius occupied Athens [23.7333,37.9667] (Perseus)Athens in July. he also took with him all the people to whose countries he came along the way. The rulers of +Thessaly [22.25,39.5] (region), Greece, Europe Thessaly did not repent of what they had already done and were readier than before to further his march. Thorax of Larissa, who had given Xerxes safe-conduct in his flight, now, without any attempt of concealment, opened a passage for Mardonius into Greece [22,39] (nation), EuropeHellas.