King of Khazad-dûm
Durin VI
Durin VI was the last King of Khazad-dûm before its fall. In his reign the Dwarves, delving for mithril beneath Caradhras, released the Balrog that had hidden there since the War of Wrath, and it slew him in T.A. 1980; from that day it was called Durin's Bane.