The Beowulf dragon was adapted for Middle-earth in J. R. R. Tolkien's The Hobbit (1937), one of the forerunners of modern high fantasy.
The dragon itself acts as a mock "goldking"; one who sees attacking Beowulf's kingdom as suitable retribution for the theft of just a single cup.
Fifty years pass with Beowulf in charge, when a local dragon is angered when a slave enters its lair and takes a cup from its treasure.
The legend of the dragonslayer already existed in Norse sagas such as the tale of Sigurd and Fafnir, and the Beowulf poet incorporates motifs and themes common to dragonlore in the poem.
[2] Beowulf is the earliest surviving piece of Anglo-Saxon literature to feature a dragon, and it is possible that the poet had access to similar stories from Germanic legend.
[6] Beowulf preserves existing medieval dragon-lore, most notably in the extended digression recounting the Sigurd/Fafnir tale.
[2] Nonetheless, comparative contemporary narratives did not have the complexity and distinctive elements written into Beowulf's dragon scene.
The scene includes extended flashbacks to the Geatish-Swedish wars, a detailed description of the dragon and the dragon-hoard, and ends with intricate funerary imagery.
[11] Also, the Beowulf poet created a dragon with specific traits: a nocturnal, treasure-hoarding, inquisitive, vengeful, fire-breathing creature.
[10] Job's dragon would have been accessible to the author of Beowulf, as a Christian symbol of evil, the "great monstrous adversary of God, man and beast alike.
[23] The dragon's hoard symbolizes the vestige of an older society, now lost to wars and famine, left behind by a survivor of that period.
[24] Before he faces the dragon, Beowulf thinks of his past: his childhood and wars the Geats endured during that period, foreshadowing the future.
[30][31] The presence of a companion is seen as a motif in other dragon stories, but the Beowulf poet breaks hagiographic tradition with the hero's suffering (hacking, burning, stabbing) and subsequent death.
[39] In his 1936 lecture Beowulf: The Monsters and the Critics, J. R. R. Tolkien noted that the dragon and Grendel are "constantly referred to in language which is meant to recall the powers of darkness which Christian men felt themselves to be encompassed.
They are 'inmates of hell', 'adversaries of God', 'offspring of Cain', 'enemies of mankind'....And so Beowulf, for all that he moves in the world of the primitive Heroic Age of the Germans, nevertheless is almost a Christian knight".
[43] Joan Acocella states in The New Yorker that "unlike Grendel and his mother, [the dragon] is less a monster than a symbol.
Dickerson and O'Hara further elaborated that through its dragon, Beowulf turned the "notion of having a monstrous evil (and not mere human foes) as the enemy" into "a hallmark of modern fantasy" present in C. S. Lewis' Narnia books, Ursula K. Le Guin's Earthsea books, and the Thomas Covenant series by Stephen Donaldson.
[46] Aia Hussein of the National Endowment for the Humanities has written that the fight between Harry Potter and the Hungarian Horntail in Harry Potter and the Goblet of Fire (2000) by J. K. Rowling was influenced by the confrontation between the dragon and the title character in Beowulf.