Kings of Khazad-dûm
1. The first King of Khazad Dum was Durin the Deathless who founded the greatest of the Dwarf kingdoms.
5. Durin V, who we really don't know anything about.
6. Durin VI, was king when the Dwarves delved to deep in the earth to find Mithril and awoke the Balrog or Durin's Bane as it was called by Durin's folk. He was killed shortly after it's release in 1980 T.A.
7. Nain I, was king for nearly a year before he too was killed by the Balrog in 1981 T.A..