Question: What is the prenomen or royal name of the ancient ruler of Egypt and a kingdom at the confluences of the Blue Nile, White Nile, and River Atbara?
Sentence (from "Kingdom of Kush"): The Kingdom of Kush or Kush ( ) was an ancient kingdom in Nubia, located at the confluences of the Blue Nile, White Nile and River Atbara in what is now Sudan and South Sudan.
Relevant evidence: Yes