Cimon (sī′mŭn), an Athenian commander, was the son of Miltiades, the conqueror at Marathon. At the time of the Persian War he was made one of the two commanders of the Athenian section of the Greek navy, commanded by the Spartan, Pausanias. His greatest encounter was in 466 B. C., with a Persian fleet of 350 ships at the River Eurymedon, when he destroyed or captured 300 vessels and also defeated the Persian land-force on the same day. He became very popular in Athens, but later was opposed by Pericles and the democracy and banished, though he was recalled in five years. He died during one of his sieges, in 449 B. C.