I actually know all about the Kush and have a couple of books about them and their brief ( in terms of how short lived it was ) their rule in Egypt.
The Ptolemaic rule ran three times as long. Cleopatra VII was the last of that line.
Ok it was off the top of my head. I didn’t check.
Consider Ahmose, son of Ebana, an Egyptian warrior who served under Nebpehtrya Ahmose (1539–1514 BC), the following taken from the autobiographical inscriptions on the walls of his tomb-chapel, the Egyptians undertook campaigns to defeat Kush and conquer Nubia under the rule of Amenhotep I (1514–1493 BC). In Ahmose’s writings, the Kushites are described as archers, “Now after his Majesty had slain the Bedoin of Asia, he sailed upstream to Upper Nubia to destroy the Nubian bowmen.” The tomb writings contain two other references to the Nubian bowmen of Kush. So, I took all that to mean from a geographic standpoint roughly the same.
I didn’t say Ptolemaic rule didn’t!
Cleopatra’s line continued through one of her daughters, where Cleopatra Selene II was wed to Juba II of Numidia. There are claims Queen Zenobia of Palmyra was descendent.