↑Aristotle, Politics, v. 10, 1311b20-2; Plutarch, Adv. Col. 1126c
↑Natoli, Anthony Francis. The Letter of Speusippus to Philip II: Introduction, Text, Translation and Commentary ; with an Appendix on the Thirty-first Socratic Letter Attributed to Plato. Franz Steiner Verlag, 2004, ISBN 3-515-08396-0, p. 54. [Footnote] "On the basis of Demosthenes Against Aristocrates 127; 119, Python of Byzantium has been identified with Python of Aenus, the slayer of the Odrysian king Cotys I, but this is highly unlikely."