Regin the Rigorous, was the Blacklock mercenary lord who had come to prominence among the Blacklocks. Ruler of his people, Regin led a host of his warriors in the War of the Dwarves and Orcs. Though most of the Blacklocks usually fought for pay, the gold stuffed in Thrór's mouth was cause for payment enough and thus the Blacklocks under Regin the Rigorous fought hard by side of Thráin son of Thrór and his Dwarf allies.

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