Diogenes Laertius Vitae philosophorum 5.1.10

[10] In the archonship of Pythodotus, in the second year of the 109th Olympiad, ¹ he went to the court of Philip, Alexander being then in his fifteenth year. His arrival at Athens was in the second year of the 111th Olympiad, ² and he lectured in the Lyceum for thirteen years; then he retired to Chalcis in the third year of the 114th Olympiad ³ and died a natural death, at the age of about sixty-three, in the archonship of Philocles, in the same year in which Demosthenes died at Calauria. It is said that he incurred the king’s displeasure because he had introduced Callisthenes to him, and that Alexander, in order to cause him annoyance, honoured Anaximenes ⁴ and sent presents to Xenocrates.