Ecbatana (Achmetha in Biblical Hebrew, Haŋgmatana in Old Persian, Agbatana in Aeschylus, written Agámtanu by Nabonidos, and Agamatanu at Behistun) was the capital of Astyages (Istuvegü), which was taken by the Persian emperor Cyrus the Great in the sixth year of Nabonidos (549 BC).