Plutarch, Artaxerxes
Bernadotte Perrin, Ed.

9. For the Greeks were victorious to their hearts' content over the Barbarians, and went forward a very great distance in pursuit of them; but Cyrus, riding a horse that was high-bred, but fierce and hard to guide (his name was Pasacas, as Ctesias tells us), was met in full course by Artagerses, commander of the Cadusians, who cried with a loud voice: [2] ‘O thou who disgracest the name of Cyrus, that noblest name among the Persians, thou most unjust and senseless of men, thou art come with evil Greeks on an evil journey after the good things of the Persians, and thou hopest to slay thine own brother and thy master, who hath a million servants that are better men than thou. And thou shalt at once have proof of this; for thou shalt lose thine own head here before thou hast seen the face of the king.’ [3] With these words he hurled his spear at Cyrus. But the breastplate of Cyrus stoutly resisted, and its wearer was not wounded, though he reeled under the shock of the mighty blow. Then, as Artagerses turned his horse away, Cyrus hurled his spear and hit him, and drove its head through his neck past the collar-bone.

[4] Thus Artagerses died at the hands of Cyrus, as nearly all writers are agreed in saying; but as regards the death of Cyrus himself, since Xenophon makes simple and brief mention of it,¹ because he was not present himself when it happened, there is no objection perhaps to my recounting, first what Deinon says about it, and then what Ctesias says.