The Lord of the Rings - Shadows of Eregion

Thráin II, son of Thrór, is a key figure in J.R.R. Tolkien's Middle-earth lore, particularly in "The Hobbit" and "The Lord of the Rings." As Thorin Oakenshield's father, Thráin's legacy is crucial to the dwarven quest to reclaim Erebor, the Lonely Mountain.
Born in Erebor, Thráin experienced the height of dwarven prosperity under Thrór's rule, which was shattered by Smaug's devastating attack. Forced into exile, Thráin's resilience and leadership shone during the dwarves' wandering years. He played a significant role in the Battle of Azanulbizar, a decisive conflict in the War of the Dwarves and Orcs, fought before the gates of Moria. This battle, driven by vengeance for Khazad-dûm's desecration, cemented his reputation as a fierce warrior.
Determined to reclaim Erebor, Thráin set out but was captured by Sauron's agents in Dol Guldur. Imprisoned by the Necromancer, he was stripped of his Ring of Power, one of the seven given to the dwarf-lords, leading to his descent into madness. Gandalf the Grey discovered Thráin in Dol Guldur during a covert mission. In a brief, tragic encounter, Thráin entrusted Gandalf with the key and map to Erebor, setting the stage for Thorin's quest.
Thráin's life, marked by loss and perseverance, left a lasting legacy. Through Thorin and the successful quest to reclaim Erebor, Thráin's enduring spirit restored the honor and glory of Durin's line, ensuring his name is remembered among the great dwarven heroes.