About his reign we know little, as the narrative of Herodotus, which makes Cyrus the grandson of Astyages by his daughter Mandane, is merely a legend; the figure of Harpagus, who as general of the Median army betrays the king to Cyrus, alone seems to contain an historical element, as Harpagus and his family afterwards obtained a high position in the Persian empire.
The Lydians failed to subdue Lycia, but after the fall of the Lydian empire it was conquered by Harpagus the general of Cyrus, Xanthus or Arnna, the capital, being completely destroyed.
"The son of Harpagus" on the obelisk of Xanthus boasts of having sacked numerous cities in alliance with the Athenian goddess.
In Lycia, which in spite of " the son of Harpagus " and King Pericles, had never been brought under one man's rule, the Greek influence is more limited.
127 ff.) only mentions the treason of the Median general Harpagus and the defeat and captivity of Astyages.