On the Behistun inscription, Darius the Great () uses the term to refer to his high-ranking officers. It has been deduced that Artashata was probably in charge of the royal "postal service," a high-ranking position. He may have held the same Persepolis sector headed by the prominent Persian officer Pharnaces (d. 497 BC). It is uncertain when this happened, it has been suggested this promotion took place around 340 BC, when Artashata married for a second time, with his sister Stateira I. In 339 BC, they had a son named Ochus. This demonstrates that Artaxerxes III, who was highly alert on any possible relative to challenge the throne, did not consider Artashata to pose the slightest threat to him or his son Arses.