
Thrór eventually made it to the Lonely Mountain, and declared himself King under the Mountain. The following year the now king Thrór, led a group back to the Lonely Mountain, while his brother Grór led another portion to the Iron Hills, and even some stayed behind in the Ered Mithrin. 2589 King Náin II and middle son Frór were killed by a great Cold-drake at the entrance to their halls, which led to the decision by the two remaining heirs, Thrór and Grór, to leave the mountains with those who wished to follow them, The reason for this being that the Dwarves of the Grey Mountains had been fighting a war against the Dragons, who had plagued the Dwarves for hundreds of years. It was nearly four hundred years before Durin's folk returned in mass to the Lonely Mountain.

2210 for the Grey Mountains where his people were now gathering.Īfter King Thorin left the mountain was once again a colony, and its status as capital city was transferred to the Ered Mithrin. Under Thráin's rule the Arkenstone was discovered, and many riches were mined from its depths After Thráin's death and his son Thorin I had ruled for ten years, he abandoned the Mountain in T.A. 1999 where he made himself King under the Mountain, and relocated the capital of the Longbeards. Thráin, with those who would follow him, went to the colony in the Lonely Mountain in T.A. 1981, the next in line, Thráin I, fled with the rest of his people. Many Dwarves died defending their city, including Durin's oldest son and heir, King Náin I.

1980, the dwarves of Khazad-dûm awoke a Balrog and it killed King Durin VI.
