Grór

Birth and early Life

He was born into the House of Durin in Third Age 2563 during its last years in the Grey Mountains. He was the youngest of the three sons of King Dáin I, who ruled Durin's folk.

When Grór was seven years old, in Third Age 2570 dragons began afflicting the dwarves in the north. Nineteen years later, in Third Age 2589 his father King Dáin I was slain by a cold-drake outside his hall in the Grey Mountains. A short time afterwards most of Durin's Folk left the Grey Mountains. In Third Age 2590 Grór left the Grey Mountains with many followers and established a colony in the Iron Hills becoming the Lord of the Iron Hills. In the same year, his brother Thrór, the oldest son and heir of Dáin, and the rest of the Dwarves of the Grey Mountains moved back to the Lonely Mountain.

Lord of the Iron Hills, and later life

Over the next few centuries a large quantity of ore was traded between the Dwarves of the Lonely Mountain and the Dwarves of the Iron Hills, until the Dragon Smaug destroyed the Kingdom under the Mountain and scattered the Longbeards who dwelt there in Third Age 2770. Most of the survivors subsequently went to their kinsmen in the Iron Hills.

In Third Age 2799 the final battle of the War of the Dwarves and Orcs occurred in the Dimrill Dale. Grór's son Náin, accompanied by his son Dáin led reinforcements from the Iron Hills to the battle, but was killed by the master of the Orcs of Moria, Azog, before the East Gate of Moria. The then still quite young Dáin killed Azog and the dwarves won the battle. With the war over, Dáin led his people home to the Iron Hills.

Six years later, in Third Age 2805, Grór died at 241 years of age and his grandson Dáin became Lord of the Iron Hills.

Many years later, in Third Age 2941 when Thrór's last descendant, Thorin, was killed in the Battle of Five Armies, Dáin II Ironfoot became the new King under the Mountain and King of the Longbeards, a title that remained with the descendants of Grór.

Jim Allan has suggested that Grór (like Gróin) is derived from Old Norse gróa ("to grow"), thus meaning "Growing-one".

2021: The Lord of the Rings Online:

Grór appears in an extended flashback depicting the Battle of Azanulbizar, in which he fights alongside his son and grandson.

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