assassination of Valentinian III
E226922
The assassination of Valentinian III was the 455 killing of the Western Roman emperor in Rome, an event that destabilized the Western Empire and contributed to its rapid decline.
All labels observed (1)
| Label | Occurrences |
|---|---|
| assassination of Valentinian III canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2029844 — 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: assassination of Valentinian III Context triple: [Empress Licinia Eudoxia, associatedWithEvent, assassination of Valentinian III]
-
A.
Assassination of Severus Alexander
The Assassination of Severus Alexander was the 235 AD murder of the Roman emperor by his own troops, an event that ended the Severan dynasty and ushered in the Crisis of the Third Century.
-
B.
Assassination of Caracalla
The Assassination of Caracalla was the 217 AD murder of the Roman emperor Caracalla during a campaign in the East, an event that ended his reign and destabilized the Severan dynasty.
-
C.
Suicide of Nero
The Suicide of Nero refers to the death by his own hand of the Roman emperor Nero in 68 AD, an event that ended the Julio-Claudian dynasty and plunged the Roman Empire into a brief civil war.
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D.
Assassination of Napoleon
The Assassination of Napoleon is a fictional plot in Leo Tolstoy's novel "War and Peace," in which the character Pierre Bezukhov contemplates killing Napoleon Bonaparte during the French invasion of Russia.
-
E.
murder of Claudia Octavia
The murder of Claudia Octavia refers to the alleged killing of Nero’s first wife, a popular Roman empress, in a notorious act that underscored the emperor’s brutality and helped fuel public outrage against his rule.
- 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: assassination of Valentinian III Target entity description: The assassination of Valentinian III was the 455 killing of the Western Roman emperor in Rome, an event that destabilized the Western Empire and contributed to its rapid decline.
-
A.
Assassination of Severus Alexander
The Assassination of Severus Alexander was the 235 AD murder of the Roman emperor by his own troops, an event that ended the Severan dynasty and ushered in the Crisis of the Third Century.
-
B.
Assassination of Caracalla
The Assassination of Caracalla was the 217 AD murder of the Roman emperor Caracalla during a campaign in the East, an event that ended his reign and destabilized the Severan dynasty.
-
C.
Suicide of Nero
The Suicide of Nero refers to the death by his own hand of the Roman emperor Nero in 68 AD, an event that ended the Julio-Claudian dynasty and plunged the Roman Empire into a brief civil war.
-
D.
Assassination of Napoleon
The Assassination of Napoleon is a fictional plot in Leo Tolstoy's novel "War and Peace," in which the character Pierre Bezukhov contemplates killing Napoleon Bonaparte during the French invasion of Russia.
-
E.
murder of Claudia Octavia
The murder of Claudia Octavia refers to the alleged killing of Nero’s first wife, a popular Roman empress, in a notorious act that underscored the emperor’s brutality and helped fuel public outrage against his rule.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
assassination
ⓘ
historical event ⓘ |
| followed | murder of Flavius Aetius ⓘ |
| hasCategory |
5th-century murders
ⓘ
Assassinations of heads of state ⓘ Events of 455 ⓘ History of Rome ⓘ |
| hasCause |
political conspiracy
ⓘ
power struggle in the Western Roman Empire ⓘ revenge for the murder of Flavius Aetius ⓘ |
| hasConsequence |
contributed to the decline of the Western Roman Empire
ⓘ
increased vulnerability of the Western Roman Empire ⓘ political chaos in Rome ⓘ short-lived reign of Petronius Maximus ⓘ subsequent Vandal sack of Rome in 455 ⓘ |
| hasCountry | Western Roman Empire ⓘ |
| hasDate | 16 March 455 ⓘ |
| hasHistoricalSource |
Chronicle of Hydatius
ⓘ
John of Antioch ⓘ Prosper of Aquitaine ⓘ |
| hasInstigator | Petronius Maximus ⓘ |
| hasMethod | stabbing ⓘ |
| hasMotive |
ambition of Petronius Maximus
ⓘ
resentment over execution of Flavius Aetius ⓘ |
| hasPerpetrator |
Optila
ⓘ
Thraustila ⓘ |
| hasPlace |
Campus Martius
ⓘ
Rome ⓘ |
| hasResult |
accession of Petronius Maximus as emperor
ⓘ
death of Valentinian III ⓘ political instability in the Western Roman Empire ⓘ weakening of imperial authority in the West ⓘ |
| hasTargetRole | Western Roman emperor ⓘ |
| hasVictim | Valentinian III ⓘ |
| hasWeapon | sword ⓘ |
| hasYear | 455 ⓘ |
| isPartOf |
history of the Western Roman Empire
ⓘ
late Roman Empire political crises ⓘ |
| precedes |
Sack of Rome 455 AD
ⓘ
surface form:
Vandal sack of Rome (455)
reign of Petronius Maximus ⓘ |
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: assassination of Valentinian III Description of subject: The assassination of Valentinian III was the 455 killing of the Western Roman emperor in Rome, an event that destabilized the Western Empire and contributed to its rapid decline.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.