God's Wife of Amun
Shepenupet II was adopted by her predecessor in office, Amenirdis I, a sister of Piye. Shepenupet was God's Wife of Amun from the beginning of Taharqa's reign until Year 9 of Pharaoh Psamtik I. While in office she had to come to a power sharing arrangement with the mayor of Thebes, Mentuemhat.