Glaurung was the first of the fire breathing dragons in middle earth. Though he was not part of the

Glaurung was the first of the fire breathing dragons in middle earth. Though he was not part of the winged race that would later come, he still managed to terrorize and burn many elven lands until he was driven back by Fingon and his archers. After Being contained in Angbad for another 2 centuries, Glaurung had become even more powerful and had fathered a brood of Dragons to wreak havoc upon the elves of beleriand. After deceiving Turin of Turambar into marrying his sister, Nienor, whom he had put under the dragons spell, he frequently attacked near the home of Turin, provoking him until Turin had finally set out to defeat Glaurung. Setting out with three men, one had fled out of fear and the other was crushed by rocks, Turin had managed to plung his sword, Gurthang into Glaurungs belly. Just before Glaurung died, he released his spell from Nienor, causing her to realize Turin to be her brother and cast herself into the river below and Turin to throw himself upon his sword. -- source link

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