Black Gate
E725496
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Black Gate canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8313316 — 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 Context triple: [Porta Nigra, hasNameMeaning, Black Gate]
-
A.
the Black Gate
The Black Gate is a fortified medieval gatehouse in Newcastle upon Tyne, England, that once formed part of the city’s castle defenses.
-
B.
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.
-
C.
The Palantíri
The Palantíri are the legendary seeing-stones of Middle-earth, crafted by the Elves and used by great rulers to communicate over vast distances and perceive events far away.
-
D.
Belegaer
Belegaer is the vast western ocean of Tolkien’s Middle-earth, separating its lands from the distant continent of Aman.
-
E.
Dúnedain of the North
The Dúnedain of the North are a remnant people of Númenórean descent in J.R.R. Tolkien’s Middle-earth, known as the Rangers who secretly protect Eriador and from whom Aragorn is descended.
- 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 Target entity description: 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.
-
A.
the Black Gate
The Black Gate is a fortified medieval gatehouse in Newcastle upon Tyne, England, that once formed part of the city’s castle defenses.
-
B.
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.
-
C.
The Palantíri
The Palantíri are the legendary seeing-stones of Middle-earth, crafted by the Elves and used by great rulers to communicate over vast distances and perceive events far away.
-
D.
Belegaer
Belegaer is the vast western ocean of Tolkien’s Middle-earth, separating its lands from the distant continent of Aman.
-
E.
Dúnedain of the North
The Dúnedain of the North are a remnant people of Númenórean descent in J.R.R. Tolkien’s Middle-earth, known as the Rangers who secretly protect Eriador and from whom Aragorn is descended.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
Roman monument
ⓘ
UNESCO World Heritage Site component ⓘ ancient city gate ⓘ tourist attraction ⓘ |
| architecturalStyle | ancient Roman architecture ⓘ |
| associatedWithPerson | Simeon of Trier NERFINISHED ⓘ |
| builtBy | Roman Empire NERFINISHED ⓘ |
| builtFor | city fortification ⓘ |
| builtInPeriod | 2nd century AD ⓘ |
| constructionStart | around 170 AD ⓘ |
| conversionPeriod | 11th century ⓘ |
| convertedBy | Archbishop Poppo of Babenberg NERFINISHED ⓘ |
| country | Germany NERFINISHED ⓘ |
| currentUse |
museum
ⓘ
viewing platform ⓘ |
| hasFeature |
double-arched gateway
ⓘ
inner courtyard ⓘ projecting semicircular towers ⓘ rusticated stone blocks ⓘ |
| hasFunction |
city gate
ⓘ
fortification ⓘ tourist attraction ⓘ |
| hasLatinName | Porta Nigra NERFINISHED ⓘ |
| hasNumberOfStoreys | four ⓘ |
| hasNumberOfTowers | two ⓘ |
| height | approximately 30 meters ⓘ |
| heritageCriteria |
(i)
ⓘ
(iii) ⓘ |
| heritageDesignation | UNESCO World Heritage Site ⓘ |
| locatedIn |
Germany
ⓘ
Rhineland-Palatinate ⓘ Trier NERFINISHED ⓘ Trier city center NERFINISHED ⓘ former Roman city of Augusta Treverorum ⓘ |
| locatedOn | the northern edge of the Roman city ⓘ |
| managedBy | Generaldirektion Kulturelles Erbe Rheinland-Pfalz NERFINISHED ⓘ |
| material |
grey sandstone blocks
ⓘ
sandstone ⓘ |
| nameMeaning | Black Gate in English ⓘ |
| nameOrigin | named for the darkened color of its stone ⓘ |
| nearbyAttraction |
Church of Our Lady, Trier
NERFINISHED
ⓘ
Trier Cathedral NERFINISHED ⓘ |
| notableFor |
being one of the best-preserved Roman city gates north of the Alps
ⓘ
massive stone construction without mortar ⓘ |
| ownedBy | State of Rhineland-Palatinate NERFINISHED ⓘ |
| partOf |
Roman Monuments, Cathedral of St Peter and Church of Our Lady in Trier
NERFINISHED
ⓘ
Roman city walls of Trier NERFINISHED ⓘ |
| restorationPeriod | early 19th century ⓘ |
| restoredBy | Napoleon Bonaparte NERFINISHED ⓘ |
| touristVisitsPerYear | hundreds of thousands of visitors ⓘ |
| UNESCOWorldHeritageSiteSince | 1986 ⓘ |
| usedAs |
church in the Middle Ages
ⓘ
fortified church complex ⓘ |
| usedToBeCalled | Porta Martis (possibly, in late antiquity) NERFINISHED ⓘ |
| width | approximately 36 meters ⓘ |
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 Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.