Editing Lonely Mountain (section)

=== Origins ===

Erebor becomes the home of the Folk of [[Durin]], a clan of [[Dwarf (Middle-earth)|Dwarves]] known as the [[Durin's folk|Longbeards]], after they are driven from their ancestral home of [[Moria (Middle-earth)|Khazad-dûm]]. In the latter days of the Third Age, this Kingdom under the Mountain holds one of the largest dwarvish treasure hoards in Middle-earth.<ref name="Durin's Folk" group=T/> Dale, a town of [[Man (Middle-earth)|Men]] built between the two southern spurs of Erebor, grew in harmony with the dwarves.<ref name="Fonstad 1991">[[Karen Wynn Fonstad|Fonstad, Karen Wynn]]. ''[[The Atlas of Middle-earth|The Atlas of Middle-earth (Revised Edition)]]''. [[Houghton Mifflin]], 1991. pp.&nbsp;110–111</ref> The Kingdom under the Mountain is founded by Thráin I the Old, who had discovered the Arkenstone there. His son, Thorin I, leaves the mountain with much of the Folk of Durin to live in the [[Ered Mithrin]] (Grey Mountains) on account of the great riches to be found in that range. After [[Dragon (Middle-earth)|dragons]] plunder their hoards, the Longbeards, led now by Thrór, a descendant of Thorin, return to Erebor to take up the title King under the Mountain. Under Thrór's reign, Erebor becomes a great stronghold where the dwarves are numerous and prosperous.<ref name="Durin's Folk" group=T/><ref name="Harper 2006"/>