Cyrus the Great By Yada-Me 536 The Jewish people returned to Judea. 544 Cyrus conquers Babylon. 546 Cyrus conquers Lydia. 550 Cyrus overthrows Astyages and became the King of Persia and Media. 566 Astyages found out that Harpagus didn't kill Cyrus. 576 Astyages ordered Harpagus the kill the infant Cyrus. Mar 2, 2022 Cyrus became the king of Persia after his father, Cambyses died. Mar 2, 2022 Cyrus was defeated by the queen of Massagete Tomyris