God's Wife of Amun
Critically, Frederic Payraudeau writes in French that "the Divine Adoratrix or God's Wife of Amun Shepenupet I, the last Libyan Adoratrix, was still alive during the reign of Shebitku because she is represented performing rites and is described as "living" in those parts of the Osiris-Héqadjet chapel built during his reign (wall and exterior of the gate) In the rest of the room, it is Amenirdis I, Shabaka's sister), who is represented with the Adoratrix title and provided with a coronation name. The succession Shepenupet I—Amenirdis I as God's Wife of Amun or Divine Adoratrix thus took place during the reign of Shebitku. This detail in itself is sufficient to show that the reign of Shabaka cannot precede that of Shebitku.