The dragon in J.R.R. Tolkien’s story The Children of Húrin is named Glaurung.
Glaurung is known as the Father of Dragons in Tolkien’s First Age mythology. He serves Morgoth, the primary enemy of the Elves and Men during the wars of Beleriand. Unlike Smaug, who is associated with The Hobbit, Glaurung belongs to the much earlier history of Middle-earth.
Glaurung plays a central role in the tragedy of Túrin Turambar. He uses deception and a powerful gaze to manipulate Túrin and Nienor, contributing directly to the story’s disastrous outcome. His intelligence and speech make him more than a merely destructive beast.
The name is often confused with Ancalagon, another First Age dragon. Ancalagon is the greatest winged dragon and appears in the War of Wrath, whereas Glaurung is the chief dragon connected with Túrin’s story.