1. An Athenian, son of Glaucon, was cousin to Critias and uncle by the mother's side to Plato, who introduces him in the dialogue which bears his name as a very young man at the commencement of the Peloponnesian war. (Comp. Heind. ad Plat. Charm.
p. 154, and the authorities there referred to.)
In the same dialogue he is represented as a very amiable youth and of surpassing beauty, and he appears again in the " Protagoras" at the house of Callias, son of Hipponicus. [See p. 567b.] We learn from Xenophon, that he was a great favourite with Socrates, and was possessed of more than ordinary ability, though his excessive diffidence deprived his country of the services which he might have rendered her as a statesman. In B. C. 404 he was one of the Ten who were appointed, over and above the thirty tyrants, to the special government of the Peiraeeus, and he was slain fighting against Thrasybulus at the battle of Munychia in the same year. (Xen. Mem. 3.6, 7, Hell.
2.4.19 ; Schneid. ad loc.