Diadumenian
E876866
Diadumenian was a briefly reigning Roman emperor and the son of Emperor Macrinus during the turbulent Severan dynasty period.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Diadumenian canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T10510337 — 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: Diadumenian Context triple: [Macrinus, child, Diadumenian]
-
A.
Macrinus
Macrinus was a Roman emperor who briefly ruled from 217 to 218 CE, notable for being the first emperor to come from the equestrian class rather than the traditional senatorial aristocracy.
-
B.
Numerian
Numerian was a Roman emperor of the late 3rd century who briefly ruled the eastern half of the empire before his mysterious death in 284 AD.
-
C.
Severus Alexander
Severus Alexander was a Roman emperor who ruled from 222 to 235 AD, known as the last emperor of the Severan dynasty and for his relatively peaceful and administratively focused reign before being overthrown by the army.
-
D.
Licinianus
Licinianus is a Roman cognomen associated with the Porcia gens, reflecting familial or ancestral ties within that ancient Roman lineage.
-
E.
Maximinus Daia
Maximinus Daia was a Roman emperor of the early 4th century, known as one of the Tetrarchs and a fierce persecutor of Christians in the eastern provinces.
- 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: Diadumenian Target entity description: Diadumenian was a briefly reigning Roman emperor and the son of Emperor Macrinus during the turbulent Severan dynasty period.
-
A.
Macrinus
Macrinus was a Roman emperor who briefly ruled from 217 to 218 CE, notable for being the first emperor to come from the equestrian class rather than the traditional senatorial aristocracy.
-
B.
Numerian
Numerian was a Roman emperor of the late 3rd century who briefly ruled the eastern half of the empire before his mysterious death in 284 AD.
-
C.
Severus Alexander
Severus Alexander was a Roman emperor who ruled from 222 to 235 AD, known as the last emperor of the Severan dynasty and for his relatively peaceful and administratively focused reign before being overthrown by the army.
-
D.
Licinianus
Licinianus is a Roman cognomen associated with the Porcia gens, reflecting familial or ancestral ties within that ancient Roman lineage.
-
E.
Maximinus Daia
Maximinus Daia was a Roman emperor of the early 4th century, known as one of the Tetrarchs and a fierce persecutor of Christians in the eastern provinces.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Roman emperor
ⓘ
child ruler ⓘ member of the Severan dynasty ⓘ |
| alternativeName |
Diadumenianus
NERFINISHED
ⓘ
Diadumenianus Caesar NERFINISHED ⓘ Marcus Opellius Diadumenianus NERFINISHED ⓘ |
| appointedCaesar | 0217-04 ⓘ |
| associatedWith |
Elagabalus
NERFINISHED
ⓘ
Macrinus NERFINISHED ⓘ Severan dynasty NERFINISHED ⓘ |
| birthDate | 0208-09-14 ⓘ |
| birthPlace | Rome ⓘ |
| burialPlace | unknown ⓘ |
| causeOfDeath | execution ⓘ |
| coEmperorWith | Macrinus NERFINISHED ⓘ |
| cognomen | Diadumenianus NERFINISHED ⓘ |
| coinageDepicts | Diadumenian NERFINISHED ⓘ |
| countryOfCitizenship | Roman Empire ⓘ |
| deathDate | 0218-06 ⓘ |
| deathPlace |
Zaghouan
NERFINISHED
ⓘ
near Antioch ⓘ |
| dynasty | Severan dynasty NERFINISHED ⓘ |
| era | Crisis of the Third Century (prelude) NERFINISHED ⓘ |
| father | Macrinus NERFINISHED ⓘ |
| fullName | Marcus Opellius Antoninus Diadumenianus NERFINISHED ⓘ |
| hasOccupation | politician ⓘ |
| killedBy | soldiers loyal to Elagabalus ⓘ |
| languageSpoken | Latin ⓘ |
| mother | Nonia Celsa NERFINISHED ⓘ |
| nobleTitle |
Augustus
NERFINISHED
ⓘ
Caesar NERFINISHED ⓘ |
| nomen | Opellius NERFINISHED ⓘ |
| notableFor |
being proclaimed Augustus as a child
ⓘ
very short reign as Roman emperor ⓘ |
| positionHeld |
Caesar
NERFINISHED
ⓘ
Roman emperor ⓘ heir apparent ⓘ |
| praenomen | Marcus NERFINISHED ⓘ |
| predecessor | Caracalla NERFINISHED ⓘ |
| recordedIn |
Cassius Dio’s Roman History
NERFINISHED
ⓘ
Historia Augusta NERFINISHED ⓘ |
| reignEnd | 0218-06 ⓘ |
| reignStart | 0218-05 ⓘ |
| religion | Roman paganism ⓘ |
| successor | Elagabalus NERFINISHED ⓘ |
| timePeriod |
3rd century
ⓘ
early 3rd century AD ⓘ |
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: Diadumenian Description of subject: Diadumenian was a briefly reigning Roman emperor and the son of Emperor Macrinus during the turbulent Severan dynasty period.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.