Constantius III
E69620
Constantius III was a short-reigning Western Roman emperor and powerful general in the early 5th century, known for his role in stabilizing the empire during a period of crisis.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Constantius III canonical | 24 |
| Constantius | 1 |
| Roman emperor Constantius III | 1 |
| Roman general Constantius III | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T543515 — 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: Constantius III Context triple: [Western Roman Empire, ruler, Constantius III]
-
A.
Constantius II
Constantius II was a 4th-century Roman emperor who ruled much of the Eastern Roman Empire and played a key role in the religious and political struggles following Constantine the Great’s reign.
-
B.
Constantius Chlorus
Constantius Chlorus was a Roman emperor of the late 3rd and early 4th centuries, best known as a senior ruler in the Tetrarchy and the father of Constantine the Great.
-
C.
Constans
Constans was a 4th-century Roman emperor, son of Constantine the Great, who ruled over parts of the Western Roman Empire until his overthrow and death.
-
D.
Emperor Marcian
Emperor Marcian was a 5th-century Byzantine ruler known for stabilizing the Eastern Roman Empire and shaping Christian doctrine through his support of the Council of Chalcedon.
-
E.
Galerius
Galerius was a Roman emperor of the late 3rd and early 4th centuries CE, best known for his role in the Tetrarchy and for intensifying the persecution of Christians in the Eastern Roman Empire.
- 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: Constantius III Target entity description: Constantius III was a short-reigning Western Roman emperor and powerful general in the early 5th century, known for his role in stabilizing the empire during a period of crisis.
-
A.
Constantius II
Constantius II was a 4th-century Roman emperor who ruled much of the Eastern Roman Empire and played a key role in the religious and political struggles following Constantine the Great’s reign.
-
B.
Constantius Chlorus
Constantius Chlorus was a Roman emperor of the late 3rd and early 4th centuries, best known as a senior ruler in the Tetrarchy and the father of Constantine the Great.
-
C.
Constans
Constans was a 4th-century Roman emperor, son of Constantine the Great, who ruled over parts of the Western Roman Empire until his overthrow and death.
-
D.
Emperor Marcian
Emperor Marcian was a 5th-century Byzantine ruler known for stabilizing the Eastern Roman Empire and shaping Christian doctrine through his support of the Council of Chalcedon.
-
E.
Galerius
Galerius was a Roman emperor of the late 3rd and early 4th centuries CE, best known for his role in the Tetrarchy and for intensifying the persecution of Christians in the Eastern Roman Empire.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
Roman general
ⓘ
Western Roman emperor ⓘ consul of the Roman Empire ⓘ |
| appointedBy | Honorius ⓘ |
| associatedWith | court of Ravenna ⓘ |
| causeOfDeath | natural causes (probable) ⓘ |
| child |
Justa Grata Honoria
ⓘ
Valentinian III ⓘ |
| conflict |
Roman civil wars of the early 5th century
ⓘ
wars against the Visigoths ⓘ |
| consulship |
consul in 414
ⓘ
consul in 417 ⓘ |
| countryOfCitizenship | Western Roman Empire ⓘ |
| dateOfBirth | circa 370 ⓘ |
| dateOfDeath | 421 ⓘ |
| dynasty |
Theodosian dynasty (by marriage)
ⓘ
linked to:
Theodosian dynasty
|
| elevationToAugustus | 421 ⓘ |
| era | Late Antiquity ⓘ |
| givenName |
Constantius
ⓘ
linked to:
Constantius III
|
| militaryRank |
magister militum per Gallias
ⓘ
magister utriusque militiae ⓘ
linked to:
magister militum
|
| nobleTitle | Augustus ⓘ |
| notableFor |
campaigns against the Visigoths in Gaul
ⓘ
campaigns against usurper Constantine III ⓘ marriage alliance with the Theodosian dynasty ⓘ stabilizing the Western Roman Empire in the early 5th century ⓘ |
| placeOfActivity |
Gaul
ⓘ
Ravenna ⓘ |
| positionHeld |
Western Roman emperor
ⓘ
consul ⓘ magister militum ⓘ |
| predecessor |
Honorius (as sole Western emperor)
ⓘ
linked to:
Honorius
|
| reignEnd | 421 ⓘ |
| reignStart | 421 ⓘ |
| religion | Nicene Christianity ⓘ |
| servedUnder | Honorius ⓘ |
| sexOrGender | male ⓘ |
| shortDescription | short-reigning Western Roman emperor and powerful general in the early 5th century ⓘ |
| spouse | Galla Placidia ⓘ |
| successor |
Honorius (as sole Western emperor after his death)
ⓘ
linked to:
Honorius
|
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: Constantius III Description of subject: Constantius III was a short-reigning Western Roman emperor and powerful general in the early 5th century, known for his role in stabilizing the empire during a period of crisis.
Referenced by (27)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Naissus, in the Roman province of Moesia (modern Niš, Serbia)
linked to: Constantius III
linked to: Constantius III
linked to: Constantius III
subject linked to:
Valentinian
subject linked to:
Thermantia (daughter of Constantius III and Galla Placidia)