Smerdis

Smerdis (smûr'dĭs), d. c.528 B.C., second son of Cyrus the Great, king of Persia. He is also called Bardiya. He was assassinated by his brother Cambyses II, who kept the murder a secret. Patizithes, the Magian custodian of Cambyses' palace, deposed Cambyses (who was campaigning in Egypt), put forward his own brother Guamata to impersonate Smerdis, and proclaimed him king. After a reign of seven months the false Smerdis was overthrown (521 B.C.) and slain. Darius I succeeded Guamata.