Ancalagon the Black
E906693
character in the legendarium of J. R. R. Tolkien
dragon of Morgoth
fictional dragon
winged fire-drake
Ancalagon the Black is a colossal and most powerful dragon of Morgoth in J.R.R. Tolkien’s legendarium, whose defeat marked the decisive turning point in the War of Wrath.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ancalagon the Black canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T11144572 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ancalagon the Black Context triple: [War of Wrath, hasNotableCombatant, Ancalagon the Black]
-
A.
Glaurung
Glaurung is a powerful, malevolent dragon from J.R.R. Tolkien’s legendarium, known as the Father of Dragons and a central antagonist in the tragic tale of The Children of Húrin.
-
B.
Angmar
Angmar is a northern realm in J.R.R. Tolkien’s Middle-earth, ruled by the Witch-king and infamous as a stronghold of evil during the Third Age.
-
C.
Morgoth
Morgoth is the primordial Dark Lord of J.R.R. Tolkien’s legendarium, a fallen Vala who sought to corrupt and dominate Arda long before Sauron.
-
D.
Caradhras
Caradhras is a treacherous, snow-clad mountain peak in J.R.R. Tolkien’s Middle-earth, notorious for thwarting the Fellowship’s attempt to cross the Misty Mountains.
-
E.
Thangorodrim
Thangorodrim is the towering, volcanic triple-peaked mountain fortress of Morgoth in J.R.R. Tolkien’s legendarium, looming above Angband in the First Age of Middle-earth.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ancalagon the Black Target entity description: Ancalagon the Black is a colossal and most powerful dragon of Morgoth in J.R.R. Tolkien’s legendarium, whose defeat marked the decisive turning point in the War of Wrath.
-
A.
Glaurung
Glaurung is a powerful, malevolent dragon from J.R.R. Tolkien’s legendarium, known as the Father of Dragons and a central antagonist in the tragic tale of The Children of Húrin.
-
B.
Angmar
Angmar is a northern realm in J.R.R. Tolkien’s Middle-earth, ruled by the Witch-king and infamous as a stronghold of evil during the Third Age.
-
C.
Morgoth
Morgoth is the primordial Dark Lord of J.R.R. Tolkien’s legendarium, a fallen Vala who sought to corrupt and dominate Arda long before Sauron.
-
D.
Caradhras
Caradhras is a treacherous, snow-clad mountain peak in J.R.R. Tolkien’s Middle-earth, notorious for thwarting the Fellowship’s attempt to cross the Misty Mountains.
-
E.
Thangorodrim
Thangorodrim is the towering, volcanic triple-peaked mountain fortress of Morgoth in J.R.R. Tolkien’s legendarium, looming above Angband in the First Age of Middle-earth.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
character in the legendarium of J. R. R. Tolkien
ⓘ
dragon of Morgoth ⓘ fictional dragon ⓘ winged fire-drake ⓘ |
| ability |
devastating physical strength
ⓘ
fire-breathing ⓘ flight ⓘ |
| alignment | evil ⓘ |
| allegiance | Morgoth ⓘ |
| appearsIn |
The History of Middle-earth (various volumes)
ⓘ
linked to:
The History of Middle-earth
The Silmarillion ⓘ The War of the Jewels (posthumous material) ⓘ
linked to:
The War of the Jewels
|
| associatedPlace |
Angband
ⓘ
Thangorodrim ⓘ |
| category |
Dragons of Middle-earth
ⓘ
linked to:
Creatures of Middle-earth
First Age characters ⓘ Servants of Morgoth ⓘ |
| causeOfDeath | slain in aerial combat by Eärendil ⓘ |
| chronologicalPosition | appears near the end of the First Age ⓘ |
| color | black ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| deathEvent | War of Wrath ⓘ |
| deathOutcome | collapse of Thangorodrim ⓘ |
| defeatedBy | Eärendil ⓘ |
| employer | Morgoth ⓘ |
| foughtAgainst |
the Host of the Valar
ⓘ
linked to:
Host of Valinor
|
| foughtWith | Eärendil’s ship Vingilot ⓘ |
| impact |
defeat marked the decisive turning point in the War of Wrath
ⓘ
his fall destroyed the towers of Thangorodrim ⓘ |
| killedBy | Eärendil ⓘ |
| languageOfName | Sindarin ⓘ |
| loyalTo |
Morgoth Bauglir
ⓘ
linked to:
Morgoth
|
| mentionedIn |
Akallabêth (indirectly via First Age history)
ⓘ
Quenta Silmarillion ⓘ
linked to:
The Silmarillion
|
| nameMeaning | Rushing Jaws (approximate gloss) ⓘ |
| narrativeFunction | symbol of Morgoth’s ultimate military power ⓘ |
| notableFor |
being the greatest of Morgoth’s dragons
ⓘ
colossal size ⓘ immense destructive power ⓘ |
| opponent | Eärendil ⓘ |
| participatedIn | War of Wrath ⓘ |
| powerLevel | greatest of all dragons bred by Morgoth ⓘ |
| race | dragon ⓘ |
| roleInEvent | led Morgoth’s winged dragons in the War of Wrath ⓘ |
| serves | Morgoth ⓘ |
| timePeriod | First Age ⓘ |
| title | mightiest of the winged dragons ⓘ |
| universe |
Middle-earth legendarium
ⓘ
linked to:
legendarium of Middle-earth
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ancalagon the Black Description of subject: Ancalagon the Black is a colossal and most powerful dragon of Morgoth in J.R.R. Tolkien’s legendarium, whose defeat marked the decisive turning point in the War of Wrath.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.