Obelisk of Montecitorio (Solarium Augusti gnomon)
E358643
The Obelisk of Montecitorio, originally an ancient Egyptian monument brought to Rome by Emperor Augustus, served as the gnomon of his giant solar meridian (Solarium Augusti) and now stands as a prominent obelisk in Rome’s Piazza Montecitorio.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Obelisco di Montecitorio | 1 |
| Obelisk of Montecitorio (Solarium Augusti gnomon) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3462470 — 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: Obelisk of Montecitorio (Solarium Augusti gnomon) Context triple: [Campus Martius, contains, Obelisk of Montecitorio (Solarium Augusti gnomon)]
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A.
Obelisk of the Quirinal
The Obelisk of the Quirinal is an ancient Roman obelisk now standing prominently in Rome’s Piazza del Quirinale, serving as a notable landmark near the Quirinal Palace.
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B.
Lateran Obelisk
The Lateran Obelisk is an ancient Egyptian granite obelisk originally erected in Thebes, later brought to Rome and now standing in Piazza San Giovanni in Laterano as one of the tallest and oldest obelisks in the city.
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C.
Vatican Obelisk
The Vatican Obelisk is an ancient Egyptian granite obelisk now standing at the center of St. Peter’s Square in Vatican City, serving as a prominent historical and religious landmark.
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D.
Obelisk of Augustus
The Obelisk of Augustus is an ancient Egyptian granite obelisk brought to Rome by Emperor Augustus and prominently erected as a monumental symbol of imperial power.
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E.
Aurelian Column
The Aurelian Column is a Roman victory column in Rome, Italy, erected to commemorate Emperor Marcus Aurelius’s military campaigns, notable for its spiral reliefs depicting scenes of war.
- 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: Obelisk of Montecitorio (Solarium Augusti gnomon) Target entity description: The Obelisk of Montecitorio, originally an ancient Egyptian monument brought to Rome by Emperor Augustus, served as the gnomon of his giant solar meridian (Solarium Augusti) and now stands as a prominent obelisk in Rome’s Piazza Montecitorio.
-
A.
Obelisk of the Quirinal
The Obelisk of the Quirinal is an ancient Roman obelisk now standing prominently in Rome’s Piazza del Quirinale, serving as a notable landmark near the Quirinal Palace.
-
B.
Lateran Obelisk
The Lateran Obelisk is an ancient Egyptian granite obelisk originally erected in Thebes, later brought to Rome and now standing in Piazza San Giovanni in Laterano as one of the tallest and oldest obelisks in the city.
-
C.
Vatican Obelisk
The Vatican Obelisk is an ancient Egyptian granite obelisk now standing at the center of St. Peter’s Square in Vatican City, serving as a prominent historical and religious landmark.
-
D.
Obelisk of Augustus
The Obelisk of Augustus is an ancient Egyptian granite obelisk brought to Rome by Emperor Augustus and prominently erected as a monumental symbol of imperial power.
-
E.
Aurelian Column
The Aurelian Column is a Roman victory column in Rome, Italy, erected to commemorate Emperor Marcus Aurelius’s military campaigns, notable for its spiral reliefs depicting scenes of war.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
ancient Egyptian obelisk
ⓘ
cultural heritage monument in Rome ⓘ gnomon ⓘ |
| alsoKnownAs |
Obelisk of Montecitorio
ⓘ
surface form:
Montecitorio Obelisk
Obelisk of Montecitorio ⓘ
surface form:
Obelisco di Montecitorio
Solarium Augusti ⓘ
surface form:
Solarium Augusti gnomon
|
| associatedStructure | Ara Pacis Augustae ⓘ |
| broughtToRomeBy |
Augustus
ⓘ
surface form:
Emperor Augustus
|
| category |
Ancient Egyptian obelisks in Rome
ⓘ
Obelisks in Rome ⓘ |
| commissionedBy |
Augustus
ⓘ
surface form:
Emperor Augustus
|
| country | Italy ⓘ |
| culture | ancient Egyptian ⓘ |
| currentPlacementDate | 1789 ⓘ |
| dedicatedTo | Sol ⓘ |
| dedicationPeriod | reign of Pharaoh Psamtik II ⓘ |
| erectedInRomeBy |
Augustus
ⓘ
surface form:
Emperor Augustus
|
| fellAndBuried | late antiquity ⓘ |
| function |
solar meridian marker
ⓘ
timekeeping instrument ⓘ |
| height | about 21.8 metres (without base) ⓘ |
| heightWithBase | about 33.97 metres ⓘ |
| heritageStatus | important archaeological monument of Rome ⓘ |
| historicalEra |
Late Period of Egypt
ⓘ
surface form:
Late Period of ancient Egypt
|
| inscriptionLanguage | Egyptian hieroglyphs ⓘ |
| locatedIn |
Italy
ⓘ
Lazio ⓘ Piazza Montecitorio ⓘ Rome ⓘ |
| material | red granite ⓘ |
| near |
Chamber of Deputies of Italy
ⓘ
surface form:
Italian Chamber of Deputies
|
| orientation | aligned roughly north–south ⓘ |
| originalFunctionInRome | gnomon of a giant solar meridian ⓘ |
| originallyFrom |
Heliopolis
ⓘ
Pharaonic Egypt ⓘ
surface form:
ancient Egypt
|
| partOf | Solarium Augusti ⓘ |
| pharaohMentioned |
Apries
ⓘ
Necho II ⓘ Psamtik II ⓘ |
| re-erected | 1789 ⓘ |
| re-erectedBy | Pope Pius VI ⓘ |
| rediscovered | 16th century ⓘ |
| restoredBy | Giovanni Antinori ⓘ |
| reusedInEra | Roman Empire ⓘ |
| standsInFrontOf | Palazzo Montecitorio ⓘ |
| touristAttraction | yes ⓘ |
| transportedToRome | 10 BCE ⓘ |
| usedAs | gnomon of the Solarium Augusti ⓘ |
| weight | approximately 230 tonnes ⓘ |
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: Obelisk of Montecitorio (Solarium Augusti gnomon) Description of subject: The Obelisk of Montecitorio, originally an ancient Egyptian monument brought to Rome by Emperor Augustus, served as the gnomon of his giant solar meridian (Solarium Augusti) and now stands as a prominent obelisk in Rome’s Piazza Montecitorio.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Obelisco di Montecitorio