（*Xi/wn), the son of Matris, a noble citizen of Heracleia, on the Pontus, was a disciple of Plato.
With the aid of Leon (or Leonides), Euxenon, and other noble youths, he put to death Clearchus, the tyrant of Heracleia. (B. C. 353.) Most of the conspirators were cut down by the tyrant's body-guards upon the spot, others were afterwards taken and put to death with cruel tortures, and the city fell again beneath the worse tyranny of Satyrus, the brother of Clearchus. (Memnon, apud Phot. Cod. 224, pp. 222, 223, ed. Bekker; Just. 16.5.)
Letters ascribed to Chion
There are extant thirteen letters which are ascribed to Chion, and which are of considerable merit; but they are undoubtedly spurious. Probably they are the composition of one of the later Platonists.
They were first printed in Greek in the Aldine collection of Greek Letters, Venet. 1499, 8vo.; again, in Greek and Latin, in the reprint of that collection, Aurel. Allob. 1606. The first edition in a sep