Thangorodrim
E904954
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Thangorodrim canonical | 16 |
How this entity was disambiguated
This entity first appeared as the object of triple T11047992 — 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: Thangorodrim Context triple: [First Age, featuresLocation, Thangorodrim]
-
A.
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.
-
B.
Ephel Dúath
Ephel Dúath is the dark, mountainous border range of Mordor in J.R.R. Tolkien’s Middle-earth legendarium, forming part of the land’s forbidding enclosure.
-
C.
Dirruhorn
Dirruhorn is a mountain peak in the Pennine Alps of Switzerland, forming part of the Mischabel massif near the Mattertal valley.
-
D.
Tol-in-Gaurhoth
Tol-in-Gaurhoth is a fortified island stronghold in J.R.R. Tolkien’s legendarium, infamous as Sauron’s lair and a place of imprisonment and torment in the First Age of Middle-earth.
-
E.
Dol Guldur
Dol Guldur is a dark fortress in southern Mirkwood in J.R.R. Tolkien’s Middle-earth, notorious as a stronghold of evil and a key base of operations for the Necromancer during the events leading up to The Lord of the Rings.
- 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: Thangorodrim Target entity description: 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.
-
A.
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.
-
B.
Ephel Dúath
Ephel Dúath is the dark, mountainous border range of Mordor in J.R.R. Tolkien’s Middle-earth legendarium, forming part of the land’s forbidding enclosure.
-
C.
Dirruhorn
Dirruhorn is a mountain peak in the Pennine Alps of Switzerland, forming part of the Mischabel massif near the Mattertal valley.
-
D.
Tol-in-Gaurhoth
Tol-in-Gaurhoth is a fortified island stronghold in J.R.R. Tolkien’s legendarium, infamous as Sauron’s lair and a place of imprisonment and torment in the First Age of Middle-earth.
-
E.
Dol Guldur
Dol Guldur is a dark fortress in southern Mirkwood in J.R.R. Tolkien’s Middle-earth, notorious as a stronghold of evil and a key base of operations for the Necromancer during the events leading up to The Lord of the Rings.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fictional mountain range
ⓘ
location in Middle-earth ⓘ stronghold of Morgoth ⓘ volcanic mountain ⓘ |
| appearsIn |
The History of Middle-earth
ⓘ
The Silmarillion ⓘ Tolkien legendarium ⓘ
linked to:
legendarium of Middle-earth
|
| associatedWith |
Balrogs
ⓘ
Morgoth ⓘ dragons ⓘ orcs ⓘ |
| collapsedInto | chasm and ruin after the War of Wrath ⓘ |
| composition | dark volcanic rock ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| destroyedBy |
the Valar
ⓘ
linked to:
The Valar
|
| destroyedIn | War of Wrath ⓘ |
| facedBy |
the hosts of the Noldor
ⓘ
the hosts of the Valar in the War of Wrath ⓘ |
| function |
fortress barrier of Angband
ⓘ
symbol of Morgoth's power ⓘ |
| guards |
the gates of Angband
ⓘ
linked to:
Fortresses of Morgoth
|
| hasFeature |
dark and forbidding appearance
ⓘ
towering mountains ⓘ triple-peaked ⓘ volcanic ⓘ |
| hasNumberOfPeaks | 3 ⓘ |
| inUniverseStatus | destroyed ⓘ |
| languageOfName | Sindarin ⓘ |
| locatedAbove | Angband ⓘ |
| locatedIn | Beleriand ⓘ |
| mentionedIn |
Quenta Silmarillion
ⓘ
linked to:
The Silmarillion
The Lay of Leithian ⓘ |
| nameMeaning | Mountains of Tyranny ⓘ |
| near |
Ered Engrin
ⓘ
linked to:
Ered Wethrin
|
| notableEvent |
Fingolfin rode to challenge Morgoth beneath its shadow
ⓘ
Maedhros was hung by the wrist from its precipice ⓘ eruption and ruin at the end of the First Age ⓘ |
| overlooks |
Anfauglith
ⓘ
the plains before Angband ⓘ
linked to:
plains of Ard-galen
|
| partOf | Morgoth's realm ⓘ |
| region | far north of Beleriand ⓘ |
| separates | Angband from the lands of Beleriand ⓘ |
| symbolizes |
oppression
ⓘ
the might of Morgoth ⓘ
linked to:
Fortresses of Morgoth
|
| terrainType | mountainous ⓘ |
| timePeriod | First Age of Middle-earth ⓘ |
| universe | Arda ⓘ |
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: Thangorodrim Description of subject: 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.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.