Macedonia was briefly a satrapy (province) of the Achaemenid Empire. It was added to the empire when general Mardonius conquered the territory in 492 BCE. It became an important base for further European conquest and also contained gold mines.[1] Satrap (Greek σατράπης satrápēs, from Old Persian xšaθrapā(van), i. ... The Achaemenid Empire (Persian: IPA: ) (559 BCâ330 BC) was the first of the Persian Empires to rule over significant portions of Greater Iran. ... Mardonius was a Persian commander during the Persian Wars with Greece in the 5th century BC. He was the son of Gobryas and the son-in-law of Darius I of Persia, whose daughter Artozostra he had married. ...