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Thrór I was the King of Durin's Folk, the son of Dáin I and brother of Frór and Grór, known for ruling Erebor in the Lonely Mountain. He was the father of Thráin II, whose son was Thorin II.


In his early life, Thrór and his family lived in the dragon-plagued Ered Mithrin. In TA 2589, when their halls came under attack by Cold-drakes, his father Dáin I and younger brother Frór were both slain at their gates by a great Cold-drake, and Thrór inherited the kingship. He and his youngest brother Grór resolved to divide their folk: Thrór led a small portion of Durin's Folk to recolonize Erebor, taking the Arkenstone with him. Grór led the other portion of Durin's Folk further east to the Iron Hills where he founded his realm.[1]


Thrór sitting on his throne with the Arkenstone

Under Thrór's leadership, Erebor prospered for over a century. Eventually, the wealth of the kingdom attracted the attention of the dragon Smaug, who flew south and assaulted and destroyed the kingdom, killing hundreds of Dwarves and driving away Thrór and his family, as well as thousands of other survivors. The majority of the survivors migrated to the Iron Hills, but some followed King Thrór, his son Thráin II, and grandson Thorin Oakenshield westward into a long, homeless wandering. They eventually settled in the hills of Dunland, and made a sufficient living there.[1]

Twenty years later in TA 2790, Thrór now old, poor, and desperate, gave to his son Thráin II the last of the Seven Rings, a key and map of the Lonely Mountain. He then left his people and journeyed away north with a single companion called Nár. They crossed over the Misty Mountains through the Redhorn Pass and then came south again, crossing the Silverlode into the valley of Azanulbizar beneath the East-gate of Moria. When they arrived, the gate was open. Nár begged Thrór to beware but, Thrór disregarded his pleas and proudly entered Moria as its returning heir, but he did not come back.[1]

Nár waited and hid nearby for many days. One day he heard a great shout, followed by the blast of a horn, and a body was flung out onto the steps. It was indeed the body of Thrór, as Nár had feared. Then a voice called out to him from just inside the gate. Rather than being killed as well, Nár was instead made use of as a messenger. He was told to deliver a warning that 'beggars' who would not wait at the doors but instead entered to attempt thieving, would meet a similar fate. Nár was told to bring this message back to his people. But that was not all: the voice proclaimed that he now ruled Moria, and if any wanted to know who was king, he had written his name on the beggar's face. Thrór's head lay severed next to his body. Nár turned it over and found branded across the forehead, written in Dwarven runes, a name that would be branded in the hearts of all Dwarves: Azog. He was barred from retrieving the head of Thrór and was struck with a pouch containing a few coins of little worth, which Azog referred to as a 'fee', but it was meant as a final insulting gesture. Nár took the pouch and fled down the Silverlode. When he looked back, Orcs had emerged from the gate and were hacking apart Thrór's body and flinging the pieces to the black crows.[1]

This was the tale that Nár brought back to Thráin II when he returned to Dunland weeks later. After seven days of sitting in silent grief, Thráin at last stood up and declared that this atrocity would be answered. This was the beginning of the War of the Dwarves and Orcs, although it took up to three years for the Dwarves to gather their full forces. The war culminated with the Battle of Azanulbizar, which, though costly, was won by the Dwarves, and Dáin Ironfoot, son of Náin, beheaded Azog and mounted the Orc's head on a stick. The pouch of coins originally flung at Nár was stuffed into Azog's mouth.[1]


Thorin's map

Thrór's Map


Depiction of Thrór's Key in Peter Jackson's The Hobbit trilogy

Thrór's map, which he had made at some point prior to his death, and the Key to the Side-door were eventually passed to his grandson Thorin II by the wizard Gandalf through Thrór's son, Thráin, during the latter's imprisonment at Dol Guldur. This map was translated by Elrond, and utilized by Thorin's company in the year TA 2941 to reclaim Erebor from Smaug.[2]

House of Durin[]

Dáin I
Thráin II
Thorin II
Dáin II
Thorin III

In adaptations[]

The Hobbit film trilogy[]

King Thror concept art

King Thrór concept art

In the 2012 live-action film The Hobbit: An Unexpected Journey, Thrór is portrayed by Welsh actor Jeffrey Thomas, but has no lines (except a brief cry of "No!" when the Arkenstone falls into a roiling pile of gold during the loss of Erebor).

In that film's story line (a significant departure from Tolkien's version), as recounted by Balin, Thrór leads the Dwarves forces at the Battle of Azanulbizar, where the displaced Dwarves of the Lonely Mountain attempt to reclaim Moria and meet an army of Orcs led by Azog. However, Thrór is killed and beheaded in hand-to-hand combat with Azog, resulting in his son, Thráin II, going mad with grief and disappearing, while Thorin II Oakenshield is enraged enough to challenge the Defiler. With nothing but a sword and a small oak branch as a shield, he succeeds in partially avenging his grandfather's death by cutting off Azog's upper left arm and turning the tide of the battle.

In all three films, Thrór is partially blamed for the coming of Smaug, having become so greedy and overtaken with lust for gold that his massive hoard eventually draws the dragon to the Lonely Mountain. In deleted scenes from the first film, Elrond describes the gold-lust as a hereditary disease of Durin's line, and Thorin is shown worrying about whether he has inherited his grandfather's "sickness." In the second film, Thranduil, who has faced "the great serpents of the North", claims to have warned Thrór about the dangers of amassing so much gold, but the dwarf refused to listen; likewise, Balin warns Thorin that a "sickness" lies upon Thrór's hoard, and Balin fears it will drive Thorin mad as it did Thrór. These words come back to haunt Thorin in the third film, when Thorin finally sees that he has succumbed to his grandfather's sickness, before casting off his crown and rallying the Company to join the other factions in fighting against Azog's army.


Thrór was powerful, honorable, and proud in his own right. However, in time his love of gold had grown far too fierce and he began spending endless hours fawning over his rivers of treasure. It was this obsession and vast treasure that attracted the unwanted attention of Smaug, the greatest fire-drake of the Third Age. Like many Dwarf lords it can be presumed that he was stout in body as he was in spirit, albeit quite greedy. This greed can be attributed, no doubt, to the effects of his Ring of Power which brooded a great lust for gold within their Dwarven bearers. This greed even lead to the spurning of King Thranduil, and the eventual souring of their relationship; a source of contention was the Necklace of Girion for Thranduil which Thrór refused to return to Thranduil although years later after Battle of Five Armies, Dain Ironfoot gave the necklace to Bard the Bowman who in return restored it to Thranduil.

Video games[]

In The Lord of the Rings Online, Thrór's tragic fate is depicted in a flashback called "Nár's Tale", being the first of many hardships endured by the King's companion.


Thror's ring
King Thror's Ring of Power.
Thror's shield
King Thror's shield
Thror - Costume
Early concept art had Thror's robe in crimson.
Thror 10
King Thror's battle armour.
Thrór miniature by Games Workshop.
The Lord of the Rings Online - Thrór


Foreign Language Translated name
Amharic ጥህሮር
Arabic طهرور
Armenian Տհրոր
Belarusian Cyrillic Трор
Bengali থ্রোর
Bulgarian Cyrillic Трор
Chinese (Hong Kong) 索爾
Georgian თრორი
Greek Θρορ
Gujarati થ્રોર
Hebrew תרור
Kannada ಥ್ರೊರ್
Kazakh Трор (Cyrillic) Tror (Latin)
Korean 스로르
Kyrgyz Cyrillic Трор
Macedonian Cyrillic Трор
Marathi थोर
Mongolian Cyrillic Трор
Nepalese ठ्रोर्
Norwegian Thrór
Pashto طهرور
Persian ثرور
Punjabi ਥਰੋਰ
Russian Трор
Sanskrit ठ्रोर्
Serbian Трор (Cyrillic) Tror (Latin)
Sinhalese ඨ්‍රොර්
Tajik Cyrillic Трор
Telugu ఠ్రొర్
Urdu طهرور
Uzbek Трор (Cyrillic) Tror (Latin)
Yiddish תּהראָר
King of Durin's Folk
Preceded by
Dáin I
Thrór Succeeded by
Thráin II
TA 2589 - TA 2790

King under the Mountain
Preceded by
Thorin I
Thrór Succeeded by
Thorin Oakenshield
TA 2589TA 2790