Tantamani's fate after the loss of Thebes is not entirely clear: he seems to have ruled for some time as king of Kush,[15] as suggested by a relief of him in Jebel Barkal. Indirect evidence points to a continued Kushite presence in Upper Egypt between 661 BC and 656 BC: monuments show that the Thebans continued to acknowledge the sovereignty of Tantamani until as late as 656 BC, although the actual extent of his power is uncertain.[15] At the same time, the supreme authority in Thebes seems to have been in the hands of Mentuemhat and his wife Shepenupet II.[16]