The Kingdom of Kush: A proper introduction [Illustrated]
“Oh Great God, swift one. Who comes to him who calls. Watch my sister for me, the woman born in the same womb as me. Do for her as I have done for you. Spontaneous miracles that cannot be denied. Elevate her children and make them prosper, even as you did for me.”
-From Taharqa’s prayer to Amun, at his temple in Kawa-
"At the Height of his power, King Taharqa leads his queens through the crowds during a festival at the temple complex of Nubia's Jebel Barkal, it's pinnacle
I think I found something about siege weapons:
"By the time the Nubians made their incursions into Egypt, around 715 BC, walls, siege tactics and equipment had undergone changes, mostly influenced by developments in the Asiatic East. Early shelters protecting sappers armed with poles trying to breach mud-brick ramparts gave way to battering rams." (source: http://www.touregypt.net/featurestories/siegewarfare.htm)
and
"Piye attacked the city of Ashmunein which was ruled by Ni
