When Kashta, a monarch of the 25th Dynasty, extended his influence to the Theban area, she was compelled to adopt Kashta's daughter Amenirdis I as her successor and name her as her chosen heir. Shepenupet and Amenirdis are depicted together in Wadi Gasus.
When Kashta, a ruler of the 25th Dynasty, expanded his dominion to the Theban region, she was forced to acknowledge Kashta's daughter Amenirdis I as her rightful successor and designate her as her preferred heir. Shepenupet and Amenirdis are shown together in Wadi Gasus.