Óin (Son of Gróin)

(See also Óin King of Durin’s Folk)

Angelo Montanini's illustration of Oin.

Óin was the son of Gróin and brother to Glóin, one of the Dwarves of the following of Thorin II Oakenshield who reclaimed Erebor from Smaug. He later travelled to Moria with Balin, and was lost in the ill-fated attempt to reoccupy Khazad-dûm, taken by the Watcher in the Water.

Óin, may have also fought in the War of the Dwarves and Orcs, considering that his younger brother Glóin was a veteran of the war.