Artabazanes claimed the crown as the eldest of all the children, because it was an established custom all over the world for the eldest to have the pre-eminence; while Xerxes, on the other hand, urged that he was sprung from Atossa, the daughter of Cyrus, and that it was Cyrus who had won the Persians their freedom. Some modern scholars also view the unusual decision of Darius to give the throne to Xerxes to be a result of his consideration of the unique positions that Cyrus the Great and his daughter Atossa have had. Artobazan was born to "Darius the subject", while Xerxes was the eldest son born in the purple after Darius's rise to the throne, and Artobazan's mother was a commoner while Xerxes's mother was the daughter of the founder of the empire.
Xerxes was crowned and succeeded his father in October–December 486 BC when he was about 36 years old. The transition of power to Xerxes was smooth due again in part to the great authority of