King of Persia and Babylonia (522). Mostly known through the Bisitun Inscription, his true identity remains unclear. Likely son of Cyrus II and brother of Cambyses II, Bardia has been associated with Smerdis/Gaumata allegedly two Magus brothers which rebelled against Cambyses and took the throne by posing one of them as the real Bardia who had been reportedly killed by order of Cambyses.