(Ἀείμνηστος), a Spartan, who killed Mardonius in the battle of Plataea, B. C. 479, and afterwards fell himself in the Messenian war. (Hdt. 9.64.) The Spartan who killed Mardonius, Plutarch (Plut. Arist. 19) calls Arimnestus (Ἀρίμνηστος).
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890