This article refers to the King of Durin's Folk. For other namesakes, see Thorin (disambiguation).

Thorin I was the son of Thráin I, and succeeded his father as King under the Mountain and King of Durin's Folk.


Hearing of greater riches in the Grey Mountains, he decided to leave the Lonely Mountain with the greater part of his folk, along with the dwarven treasure: The Arkenstone, leaving the mountain abandoned for over three-hundred years until his descendent Thrór reclaimed it. He was succeeded as king by his son Glóin.

His grandfather was Náin I the last ruler of Khazad-dûm before he was killed and the rest of his people driven out by a Balrog. He was also a sixth generation relative of Thorin Oakenshield, his namesake. Thorin Oakenshield died at the Battle of the 5 Armies.[1]

King of Durin's Folk
Preceded by
Thráin I
Thorin I Succeeded by
TA 2190 - TA 2289
King under the Mountain
Preceded by
Thráin I
Thorin I Succeeded by
TA 2190TA 2210


  1. The Lord of the Rings, Appendix A: Annals of the Kings and Rulers, III: Durin's Folk