Hadrian's Library
E403269
Hadrian's Library is an ancient Roman complex in central Athens, built by Emperor Hadrian as a grand library and cultural center, whose ruins now stand just off Monastiraki Square.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Hadrian's Library canonical | 5 |
| Hadrian’s Library | 2 |
| Hadrian's Library ruins | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3980424 — 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: Hadrian's Library Context triple: [Monastiraki Square, near, Hadrian's Library]
-
A.
Library of Pantainos
The Library of Pantainos was a Roman-era public library and cultural complex in Athens, known for its role as an important center of learning and literature within the Ancient Agora.
-
B.
Library of Celsus
The Library of Celsus is an ancient Roman monumental library in Ephesus, Turkey, renowned for its ornate façade and status as one of the best-preserved libraries of the classical world.
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C.
Trajan's Forum
Trajan's Forum was an expansive imperial public complex in ancient Rome, renowned for its grand architecture, markets, and monumental column celebrating Emperor Trajan's victories.
-
D.
Serapeum of Rome
The Serapeum of Rome was a grand Roman temple complex dedicated to the Greco-Egyptian god Serapis, reflecting the fusion of Egyptian and Hellenistic religious traditions in the heart of the Roman Empire.
-
E.
Hadrian's Mausoleum
Hadrian's Mausoleum, now known as Castel Sant'Angelo, is a monumental ancient Roman tomb and fortress in Rome that served as the burial place for several emperors.
- 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: Hadrian's Library Target entity description: Hadrian's Library is an ancient Roman complex in central Athens, built by Emperor Hadrian as a grand library and cultural center, whose ruins now stand just off Monastiraki Square.
-
A.
Library of Pantainos
The Library of Pantainos was a Roman-era public library and cultural complex in Athens, known for its role as an important center of learning and literature within the Ancient Agora.
-
B.
Library of Celsus
The Library of Celsus is an ancient Roman monumental library in Ephesus, Turkey, renowned for its ornate façade and status as one of the best-preserved libraries of the classical world.
-
C.
Trajan's Forum
Trajan's Forum was an expansive imperial public complex in ancient Rome, renowned for its grand architecture, markets, and monumental column celebrating Emperor Trajan's victories.
-
D.
Serapeum of Rome
The Serapeum of Rome was a grand Roman temple complex dedicated to the Greco-Egyptian god Serapis, reflecting the fusion of Egyptian and Hellenistic religious traditions in the heart of the Roman Empire.
-
E.
Hadrian's Mausoleum
Hadrian's Mausoleum, now known as Castel Sant'Angelo, is a monumental ancient Roman tomb and fortress in Rome that served as the burial place for several emperors.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
ancient Roman library
ⓘ
archaeological site ⓘ cultural complex ⓘ |
| architecturalStyle |
Classical architecture
ⓘ
Roman architecture ⓘ |
| builder |
Hadrian
ⓘ
surface form:
Emperor Hadrian
|
| constructionEnd | AD 132 ⓘ |
| constructionStart | AD 131 ⓘ |
| continent | Europe ⓘ |
| country | Greece ⓘ |
| currentCondition | ruin ⓘ |
| hasPart |
Byzantine church remains
ⓘ
Ottoman-period structures ⓘ central pool ⓘ eastern façade ⓘ exedrae ⓘ lecture halls ⓘ northern wall ⓘ outer colonnade ⓘ peristyle courtyard ⓘ propylon ⓘ reading rooms ⓘ southern wall ⓘ storerooms ⓘ tetraconch church remains ⓘ western wall ⓘ |
| heritageStatus | protected archaeological site ⓘ |
| historicalEra | 2nd century AD ⓘ |
| length | about 122 meters ⓘ |
| locatedIn |
Athens
ⓘ
Greece ⓘ central Athens ⓘ |
| locatedNear | Monastiraki Square ⓘ |
| managedBy | Hellenic Ministry of Culture ⓘ |
| material |
Pentelic marble
ⓘ
brick ⓘ limestone ⓘ |
| namedAfter | Hadrian ⓘ |
| nearby |
Acropolis of Athens
ⓘ
Monastiraki metro station ⓘ Roman Agora ⓘ |
| openToPublic | yes ⓘ |
| orientation | east–west ⓘ |
| originalFunction |
archive
ⓘ
cultural center ⓘ lecture hall complex ⓘ library ⓘ philosophical school venue ⓘ |
| partOf |
Roman Agora
ⓘ
surface form:
Roman Agora area of Athens
|
| patron |
Hadrian
ⓘ
surface form:
Emperor Hadrian
|
| period |
Roman Antiquity
ⓘ
surface form:
Roman Imperial period
|
| shape | rectangular complex ⓘ |
| significance |
important archaeological tourist attraction in Athens
ⓘ
major Roman monument in Athens ⓘ |
| width | about 82 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: Hadrian's Library Description of subject: Hadrian's Library is an ancient Roman complex in central Athens, built by Emperor Hadrian as a grand library and cultural center, whose ruins now stand just off Monastiraki Square.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hadrian's Library ruins
this entity surface form:
Hadrian’s Library
subject surface form:
Gate of Athena Archegetis
this entity surface form:
Hadrian’s Library