5. The Macedonian fugitive and traitor, son of Antiochus. Arrian (p. 17f.) ascribes his flight from Macedonia to his hatred and fear of Alexander the Great; the ground of these feelings is not stated, but Mitford (ch. 44. sect. 1) connects him with the plot of Pausanias and the murder of Philip. He took refuge in Ephesus under Persian protection; whence, however, after the battle of the Granicus, fearing the approach of Alexander, he escaped with the Greek mercenaries who garrisoned the place, and fled to the court of Dareius. (Arr. l.c.) In the winter of the same year, B. C. 333, while Alexander was at Phaselis in Lycia, discovery was made of a plot against his life, ill which Amyntas was implicated. He appears to have acted as the channel through whom Dareius had been negotiating with Alexander the Lyncestian, and had promised to aid him in mounting the throne of Macedonia on condition of his assassinating his master. The design was discovered through the confession of Asisines, a Persian, whom Dareius had despatched on a secret mission to the Lyncestian, and who was apprehended by Parmenio in Phrygia. (Arr. i. pp. 24, e., 25, b.)
At the battle of Issus we hear again of Amyntas as a commander of Greek mercenaries in the Persian service (Curt. 3.11.18; comp. Arr. ii. p. 40b.); and Plutarch and Arrian mention his advice vainly given to Darius shortly before, to await Alexander's approach in the large open plains to the westward of Cilicia. (Plut. Alex. p. 675b., Arr. ii. pp. 33, e., 34, a.)
Or the defeat of the Persians at the battle of Issus, Amyntas fled with a large body of Greeks to Tripolis in Phoenicia. There he seized some ships, with which he passed over to Cyprus, and thence to Egypt, of the sovereignty of which--a double traitor--he designed to possess himself. The gates of Pelusium were opened to him on his pretending that he came with authority from Dareius : thence he pressed on to Memphis, and being joined by a large number of Egyptians, defeated in a battle the Persian garrison under Mazaces. But this victory made his troops over-confident and incautious, and, while they were dispersed for plunder, Mazaces sallied forth upon them, and Amyntas himself was killed with the greater part of his men. (Diod. 17.48; Arr. ii. p. 40c; Curt. 4.1.27, &c., 4.7.1, 2.)
It is possible that the subject of the present article may have been the Amyntas who is mentioned among the ambassadors sent to the Boeotians by Philip, B. C. 338, to prevent the contemplated alliance of Thebes with Athens. It may also have been the son of Andromenes. (Plut. Dem. pp. 849, 854; Diod. 16.85.)