King Nastasen Ankhkhare was a Napatan Period ruler of the Kingdom of Kush (Sudan) c. 335 B.C. - 315/310 B.C.
His mother was Queen Pelkha and his father may have been King Harsiotef. Married to Queen Sekhmakh, and succeeded by King Aryamani.
Nastasen is noted for defeating an Upper Egyptian invasion of Kush by Khabbash "taking many fine boats" and putting down many rebellions, thereby consolidating Harsiotef's earlier conquests. Most of what we know about Nastasen comes from the rather lengthy, and well preserved Stela of Nastasen.
The submerged tomb underneath his pyramid at Nuri (Nuri 15) is currently under excavation by the Nuri Archaeological Expedition. Early results (remnants of gold) are indicating the real possibility that his tomb has not been looted, and his sarcophagus may still be intact! Because of high water levels the tomb is currently under water and archaeologists have to resort to underwater excavations ("hookah diving"), a first in Sudan.