Jared Draws — Glaurung, the Father of Dragons

Glaurung, the Father of Dragons

Glaurung, The One Wiki to Rule Them All

Morgoth

Glaurung, The One Wiki to Rule Them All

Could Ancalagon the Black (LOTR) defeat and kill Aegon the Conqueror and his sister wives (GoT and ASOIAF), who are riding their dragons at that moment? - Quora

In Tolkien's writings, why were later dragons more powerful than Glaurung? - Quora

Jared Draws — Glaurung, the Father of Dragons

Glaurung, Ancalagon, & the Dragons of The Silmarillion

Glaurung the Deceiver, Father of Dragons, Servant of Morgoth

Glaurung, The One Wiki to Rule Them All

Morgoth