Eupolis, Thrasyllus, and Mneson were brothers, children of the same father and mother. Their father left them a large property, so that each of them was considered able to perform public offices in the city. This fortune the three brothers divided amongst themselves. Two of them died about the same time, Mneson here in Athens, unmarried and without issue, Thrasyllus in Sicily,During the Sicilian expedition of 415-413 B.C. having been chosen as one of the trierarchs, leaving a son Apollodorus, who afterwards adopted me.