Black Gate of Mordor
E850323
The Black Gate of Mordor is the heavily fortified main entrance to Sauron’s realm in J.R.R. Tolkien’s Middle-earth, guarding the only direct passage into the land of Mordor.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Black Gate of Mordor canonical | 2 |
| Fortresses of Mordor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10225253 — 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: Black Gate of Mordor Context triple: [Battle at the Black Gate, takesPlaceAt, Black Gate of Mordor]
-
A.
Black Gate
Black Gate is the English meaning of "Porta Nigra," the massive ancient Roman city gate in Trier, Germany, renowned as one of the best-preserved Roman monuments north of the Alps.
-
B.
Throne of Gondor
The Throne of Gondor is the royal seat and symbol of kingship over the realm of Gondor in J.R.R. Tolkien’s Middle-earth legendarium.
-
C.
Lord of Mordor
Lord of Mordor is the dark overlord of Middle-earth who rules from the land of Mordor and seeks dominion over all through the One Ring.
-
D.
Stewards of Gondor
The Stewards of Gondor are a noble hereditary line that ruled the kingdom of Gondor as caretakers in the absence of a king in J.R.R. Tolkien’s Middle-earth legendarium.
-
E.
Lord of Balaguer
Lord of Balaguer is a traditional noble title in Spain historically associated with the Spanish monarchy and currently held by King Felipe VI.
- 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: Black Gate of Mordor Target entity description: The Black Gate of Mordor is the heavily fortified main entrance to Sauron’s realm in J.R.R. Tolkien’s Middle-earth, guarding the only direct passage into the land of Mordor.
-
A.
Black Gate
Black Gate is the English meaning of "Porta Nigra," the massive ancient Roman city gate in Trier, Germany, renowned as one of the best-preserved Roman monuments north of the Alps.
-
B.
Throne of Gondor
The Throne of Gondor is the royal seat and symbol of kingship over the realm of Gondor in J.R.R. Tolkien’s Middle-earth legendarium.
-
C.
Lord of Mordor
Lord of Mordor is the dark overlord of Middle-earth who rules from the land of Mordor and seeks dominion over all through the One Ring.
-
D.
Stewards of Gondor
The Stewards of Gondor are a noble hereditary line that ruled the kingdom of Gondor as caretakers in the absence of a king in J.R.R. Tolkien’s Middle-earth legendarium.
-
E.
Lord of Balaguer
Lord of Balaguer is a traditional noble title in Spain historically associated with the Spanish monarchy and currently held by King Felipe VI.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
fictional location
ⓘ
fortification ⓘ gate ⓘ structure in Middle-earth ⓘ |
| accessRoute | Morannon pass NERFINISHED ⓘ |
| alsoKnownAs | Morannon NERFINISHED ⓘ |
| appearsIn |
The Fellowship of the Ring
NERFINISHED
ⓘ
The Lord of the Rings NERFINISHED ⓘ The Return of the King NERFINISHED ⓘ The Two Towers NERFINISHED ⓘ |
| associatedWith |
The Last Battle at the Black Gate
NERFINISHED
ⓘ
War of the Ring NERFINISHED ⓘ |
| barrierBetween |
Mordor and the lands of Gondor
ⓘ
Mordor and the lands of Rhovanion NERFINISHED ⓘ |
| borderOf |
Ithilien
NERFINISHED
ⓘ
Mordor NERFINISHED ⓘ |
| controlledBy |
Mordor
NERFINISHED
ⓘ
Sauron NERFINISHED ⓘ |
| controlsPassageThrough | Cirith Gorgor NERFINISHED ⓘ |
| controlsPassageTo | Mordor NERFINISHED ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| defendedBy |
Easterlings
NERFINISHED
ⓘ
Haradrim NERFINISHED ⓘ orcs of Mordor ⓘ |
| describedIn | The Lord of the Rings: The Return of the King, Book V NERFINISHED ⓘ |
| fictionalUniverse | Middle-earth NERFINISHED ⓘ |
| filmDepictionDirector | Peter Jackson NERFINISHED ⓘ |
| flankedBy |
Carchost
NERFINISHED
ⓘ
Narchost NERFINISHED ⓘ Towers of the Teeth NERFINISHED ⓘ |
| function |
border defense
ⓘ
main entrance to Sauron’s realm ⓘ military stronghold ⓘ |
| guardedBy | Towers of the Teeth NERFINISHED ⓘ |
| guardedRegion | northwestern entrance to Mordor ⓘ |
| guards | entrance to Mordor ⓘ |
| inspiredAdaptation | The Lord of the Rings film trilogy NERFINISHED ⓘ |
| languageOfName | Sindarin NERFINISHED ⓘ |
| locatedInFictional | Mordor NERFINISHED ⓘ |
| material | iron ⓘ |
| meaningOfName | Black Gate NERFINISHED ⓘ |
| near |
Ephel Dúath
NERFINISHED
ⓘ
Ered Lithui NERFINISHED ⓘ |
| notableEvent |
Diversionary attack by the Army of the West
ⓘ
Parley between the Captains of the West and the Mouth of Sauron ⓘ |
| strategicImportance | only direct passage into Mordor from the west and north ⓘ |
| timePeriod | Third Age of Middle-earth NERFINISHED ⓘ |
| typeOfDefense | heavily fortified gate ⓘ |
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: Black Gate of Mordor Description of subject: The Black Gate of Mordor is the heavily fortified main entrance to Sauron’s realm in J.R.R. Tolkien’s Middle-earth, guarding the only direct passage into the land of Mordor.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fortresses of Mordor