Dol Guldur
E780193
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Dol Guldur canonical | 28 |
| Dol Guldur (as the Necromancer) | 1 |
| Dol Guldur (for some members) | 1 |
| Gorgoroth | 1 |
| shadow of Dol Guldur | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9116135 — 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: Dol Guldur Context triple: [Sauron, formerResidence, Dol Guldur]
-
A.
Barad-dûr
Barad-dûr is Sauron’s immense dark fortress in J.R.R. Tolkien’s Middle-earth, dominating the land of Mordor as his primary stronghold.
-
B.
Moria
Moria is the vast, ancient underground Dwarven kingdom beneath the Misty Mountains in J.R.R. Tolkien’s Middle-earth, known for its dark tunnels, great halls, and the Balrog that dwells within.
-
C.
Minas Morgul
Minas Morgul is a sinister, corrupted fortress-city in J.R.R. Tolkien's Middle-earth, serving as a stronghold of the Nazgûl in The Lord of the Rings.
-
D.
Cirith Ungol
Cirith Ungol is a perilous mountain pass and fortress in Mordor in J.R.R. Tolkien’s Middle-earth, infamous for its association with Shelob and the final leg of Frodo and Sam’s journey into Sauron’s realm.
-
E.
Mount Doom
Mount Doom is the fiery volcanic mountain in Mordor where the One Ring was forged and ultimately destroyed in J.R.R. Tolkien’s 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: Dol Guldur Target entity description: 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.
-
A.
Barad-dûr
Barad-dûr is Sauron’s immense dark fortress in J.R.R. Tolkien’s Middle-earth, dominating the land of Mordor as his primary stronghold.
-
B.
Moria
Moria is the vast, ancient underground Dwarven kingdom beneath the Misty Mountains in J.R.R. Tolkien’s Middle-earth, known for its dark tunnels, great halls, and the Balrog that dwells within.
-
C.
Minas Morgul
Minas Morgul is a sinister, corrupted fortress-city in J.R.R. Tolkien's Middle-earth, serving as a stronghold of the Nazgûl in The Lord of the Rings.
-
D.
Cirith Ungol
Cirith Ungol is a perilous mountain pass and fortress in Mordor in J.R.R. Tolkien’s Middle-earth, infamous for its association with Shelob and the final leg of Frodo and Sam’s journey into Sauron’s realm.
-
E.
Mount Doom
Mount Doom is the fiery volcanic mountain in Mordor where the One Ring was forged and ultimately destroyed in J.R.R. Tolkien’s The Lord of the Rings.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
fictional fortress
ⓘ
location in Middle-earth ⓘ stronghold of evil ⓘ |
| abandonedBy |
Sauron (temporarily after White Council’s assault)
ⓘ
linked to:
Sauron
|
| appearsIn |
The History of Middle-earth
ⓘ
The Hobbit ⓘ The Lord of the Rings ⓘ The Silmarillion (appendices and references) ⓘ
linked to:
The Silmarillion
Unfinished Tales ⓘ |
| associatedEvent |
White Council’s attack on Dol Guldur
ⓘ
imprisonment of Thráin II ⓘ loss of the last of the Seven Rings of the Dwarves ⓘ |
| attackedBy |
Elves of Lórien
ⓘ
linked to:
Elves of Lothlórien
Galadriel ⓘ Gandalf ⓘ White Council ⓘ |
| controlledBy |
Sauron
ⓘ
servants of Sauron ⓘ
linked to:
Servants of Sauron
|
| createdBy | J. R. R. Tolkien ⓘ |
| feature |
dark towers
ⓘ
dungeons ⓘ encircling walls ⓘ |
| finalFate | cast down by Galadriel at the end of the War of the Ring ⓘ |
| fortificationType | hill-fortress ⓘ |
| inhabitedBy |
fell creatures
ⓘ
orcs ⓘ |
| languageOfName | Sindarin ⓘ |
| laterOccupiedBy |
Sauron
ⓘ
the Necromancer ⓘ
linked to:
The Necromancer
|
| locatedIn |
Middle-earth
ⓘ
Mirkwood ⓘ Rhovanion ⓘ Wilderland ⓘ southern Mirkwood ⓘ |
| meaningOfName |
Hill of Dark Sorcery
ⓘ
linked to:
Hill of Sorcery
|
| near |
Anduin
ⓘ
Lothlórien ⓘ the Old Forest Road ⓘ
linked to:
Old Forest Road
|
| originallyOccupiedBy |
Elves of Oropher
ⓘ
linked to:
Elves of Lindon
|
| otherName |
Amon Lanc
ⓘ
Hill of Sorcery ⓘ |
| strategicRole |
threat to Lórien
ⓘ
threat to northern Rhovanion ⓘ |
| threatLevel | one of the chief strongholds of Sauron in the Third Age ⓘ |
| timeOfEstablishment | around Third Age 1050 ⓘ |
| timeOfMajorAttack |
Third Age 2941
ⓘ
War of the Ring ⓘ |
| usedAs |
base of operations for Sauron
ⓘ
prison for Thráin II ⓘ stronghold of the Necromancer ⓘ |
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: Dol Guldur Description of subject: 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.
Referenced by (32)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Dol Guldur
linked to: Dol Guldur