Thorin Oakenshield

History
Thorin was descended from Durin, the first dwarf to ever live. He was the eldest child and son of Thráin II, a grandson of Thrór, and the elder brother of Frerin and Dís (unnamed in the film).

At twenty-four years old, Thorin witnessed the downfall of his kingdom after Smaug overtook their home. In The Hobbit films, Thorin gains a mistrust of Elves after Thranduil refused to help them seek a home. Many years later during the Battle of Moria, Thorin fights with his family against the Orcs that are attacking him. He witnesses his grandfather slain by the Orcs' leader, Azog the Defiler. Thorin goes to charge Azog, but is stopped by his father, Thráin, who tells Thorin one by one Azog has sworn to wipe out the Line of Durin. He orders Thorin to stay away from Azog as he battles the Orc. Thorin later goes and fights Azog himself and earns the epithet "Oakenshield" after using only an oaken branch as a shield. At the end of the battle, Thorin went to look for his father, to the last body but saw he was not among the dead. Only those who died were Thorin's brother and brother-in-law.