Nentyarch is an archaic title given to the rulers of the ancient empire of Narfell. The first Nentyarch, Thargaun Crell, created Dun-Tharos in the Rawlinswood in -970 DR and forged the Crown of Narfell before uniting the various Nar realms under his rule. The empire of Narfell lasted 794 years until Narfell and the neighboring empire of Raumathar destroyed each other. The last true Nentyarch was Rheligaun "the Horned", but he disappeared after the fall of the empire.