Atlanersa might have been born around 671 BC or shortly after, when Taharqa's heir apparent Nes-Anhuret was captured in Memphis by Esarhaddon.[3][73] Atlanersa reigned for a decade in the mid-7th century BC, ascending to the throne around 653 BC and dying around 643 BC,[74][75][76] a period of Nubian history now called the early Napatan period.[77] This makes him a contemporary of Ashurbanipal (fl. c. 668–627 BC) and Psamtik I (fl. c. 664–610 BC).[78]