Hydarnes

Hydarnes (Greek: Ὑδάρνης, Old Persian: Vidarna), son of Bagābigna, was a Persian nobleman of the Achaemenid Empire in the 6th century BC.

In 522 BC, a Magian named Gaumâta seized power in the Achaemenid empire, claiming to be Smerdis, the brother of the legitimate king Cambyses. Hydarnes was one of the seven conspirators along with Otanes, Ardumanish, Gobryas, Intaphrenes, Megabyzos and Darius against the usurper Gaumâta. After they killed Gaumâta in September 522 BC, they proclaimed Darius the new Great King of Persia.