 In 341 BC, the defeat by Phocion of the Macedonian party in Eretria and Oreus under Cleitarchus and Philistides, gave control over the island to Callias.Callias seems to have been still living in 330 BC, the date of Demosthenes' oration, "On the Crown".This can be deduced by comments made by Aeschines, who mentions a proposal by Demosthenes to confer on Callias and his brother Taurosthenes the honour of Athenian citizenship.