History of the Peloponnesian War

During the same summer the Aetolians, who had previously sent three envoys to Corinth and Lacedaemon, namely Tolophus the Ophionean, Boriades the Eurytanian, and Teisander the Apodotian, urged them to send an army against Naupactus because this city had brought the Athenians against them.

So towards autumn the Lacedaemonians sent three thousand hoplites of their allies, among whom were six hundred from Heracleia, the city which had recently been founded in Trachis. The commander of the expedition was Eurylochus a Spartan, who was accompanied by the Spartans Macarius and Menedaïus.