Ered Luin
E906673
Ered Luin is a mountain range in J.R.R. Tolkien’s Middle-earth, known as the Blue Mountains that once housed several Dwarven realms and marked the western edge of Eriador.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ered Luin canonical | 22 |
How this entity was disambiguated
This entity first appeared as the object of triple T11144302 — 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: Ered Luin Context triple: [Eriador, borders, Ered Luin]
-
A.
Ered Lithui
Ered Lithui is a dark, forbidding mountain range in J.R.R. Tolkien’s Middle-earth that forms the northern border of the land of Mordor.
-
B.
Ered Wethrin
Ered Wethrin is a mountain range in J.R.R. Tolkien’s Middle-earth legendarium, forming the northern highlands that once bordered the lands of Beleriand.
-
C.
Fonte das Lágrimas
Fonte das Lágrimas is a historic fountain in Coimbra, Portugal, romantically associated with the tragic medieval love story of Pedro and Inês de Castro.
-
D.
Hạfhai
Hạfhai is one of the small outlying islets associated with the Polynesian island of Rotuma in the South Pacific.
-
E.
Grond
Grond is the massive, wolf-shaped battering ram used by Sauron’s forces to smash the gates of Minas Tirith during the War of the Ring in J.R.R. Tolkien’s legendarium.
- 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: Ered Luin Target entity description: Ered Luin is a mountain range in J.R.R. Tolkien’s Middle-earth, known as the Blue Mountains that once housed several Dwarven realms and marked the western edge of Eriador.
-
A.
Ered Lithui
Ered Lithui is a dark, forbidding mountain range in J.R.R. Tolkien’s Middle-earth that forms the northern border of the land of Mordor.
-
B.
Ered Wethrin
Ered Wethrin is a mountain range in J.R.R. Tolkien’s Middle-earth legendarium, forming the northern highlands that once bordered the lands of Beleriand.
-
C.
Fonte das Lágrimas
Fonte das Lágrimas is a historic fountain in Coimbra, Portugal, romantically associated with the tragic medieval love story of Pedro and Inês de Castro.
-
D.
Hạfhai
Hạfhai is one of the small outlying islets associated with the Polynesian island of Rotuma in the South Pacific.
-
E.
Grond
Grond is the massive, wolf-shaped battering ram used by Sauron’s forces to smash the gates of Minas Tirith during the War of the Ring in J.R.R. Tolkien’s legendarium.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
fictional mountain range
ⓘ
location in Middle-earth ⓘ |
| adjacentTo |
Beleriand (in the First Age)
ⓘ
linked to:
Beleriand
Eriador ⓘ Lindon (in later Ages) ⓘ
linked to:
Lindon
|
| age |
existed in the First Age
ⓘ
existed in the Second Age ⓘ existed in the Third Age ⓘ |
| alsoKnownAs |
Blue Mountains
ⓘ
Ered Lindon ⓘ |
| associatedWith |
Dwarven migration after the First Age
ⓘ
Dwarves of Durin’s Folk (as a later dwelling place for some) ⓘ
linked to:
Dwarves of Durin's Folk
the realm of Gil-galad in Lindon ⓘ
linked to:
Elven realm of Lindon
|
| category |
Dwarven realms of Middle-earth
ⓘ
Locations in The Silmarillion ⓘ Mountains of Middle-earth ⓘ |
| contains |
Belegost
ⓘ
Dwarven halls ⓘ Dwarven mansions ⓘ Dwarven mines ⓘ Elvish settlements ⓘ Nogrod ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| fictionalUniverse | Middle-earth ⓘ |
| formsBorderOf |
Eriador
ⓘ
Lindon ⓘ |
| inhabitedBy |
Dwarves
ⓘ
Elves ⓘ |
| label | Ered Luin ⓘ |
| languageOfName | Sindarin ⓘ |
| locatedIn | northwestern Middle-earth ⓘ |
| mentionedIn |
The History of Middle-earth
ⓘ
The Lord of the Rings appendices ⓘ The Silmarillion ⓘ Unfinished Tales ⓘ |
| nameMeaning |
Blue Mountains
ⓘ
Blue Range ⓘ |
| notableFor |
Dwarven realms of Nogrod and Belegost
ⓘ
linked to:
Dwarven kingdoms
being the western boundary of Eriador ⓘ blue hue in the distance ⓘ refuge for Dwarves after the destruction of Beleriand ⓘ |
| orientation | north–south ⓘ |
| partiallyDestroyedBy | cataclysms at the end of the First Age ⓘ |
| partOf |
the Westlands of Middle-earth
ⓘ
linked to:
The Westlands of Middle-earth
|
| regionType | mountain range ⓘ |
| remnantOf | mountain ranges of eastern Beleriand ⓘ |
| separates |
Eriador
ⓘ
Lindon ⓘ |
| survived |
the War of Wrath
ⓘ
linked to:
War of Wrath
|
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: Ered Luin Description of subject: Ered Luin is a mountain range in J.R.R. Tolkien’s Middle-earth, known as the Blue Mountains that once housed several Dwarven realms and marked the western edge of Eriador.
Referenced by (22)
Full triples — surface form annotated when it differs from this entity's canonical label.