With the defeat of Sauron, Khazad-dûm was able to recover somewhat, and it was not until 1300 years later that the Longbeards came under renewed attacks by Orcs.[4] By that time, the more easily accessible veins of mithril had become exhausted, and eventually, in the year 1980, the miners of Khazad-dûm delved so deep that they disturbed or released a Balrog, an ancient demon from long before, forgotten, and powerful. This balrog of Morgoth killed King Durin VI in that year, and in the following year Náin, his son. The Dwarves were unable to defeat Durin's Bane, or even drive it away, for steel and stone had no effect on the ancient being, and so were forced to flee their ancient home, relocating to Erebor. Khazad-dûm was deserted, and the elves renamed it Moria. Thereafter, Orcs of the Misty Mountains made Moria their home.