The subject of this article originates from non-canonical sources. To find out about what is considered "canon" see LOTR:Canon.
Durbûrz the Goblin King of Moria is a non-canonical unit produced by Games Workshop for The Lord of the Rings Strategy Battle Game, who resembles the character Gorkil from The Lord of the Rings: The Battle for Middle-earth II.
The Goblin King of Moria has ruled the underground lands for many years with an iron fist of brutality and strength. Feared mightily (and rightly so) by his goblin subjects, Durbûrz, while not the cleverest of Goblins, is as fiercely territorial as the rest and reacts to his realm's invasion by raising a powerful army to oppose Balin and his Dwarves.