Constans

E49250

Roman emperor historical figure

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.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (5)

Label	Occurrences
Constans I	24
Constans canonical	12
Constans as emperor	1
Emperor Constans	1
Flavius Julius Constans	1

Statements (47)

Predicate	Object
instanceOf	Roman emperor ⓘ historical figure ⓘ
alsoKnownAs	Constans ⓘ surface form: Constans I Constans ⓘ surface form: Flavius Julius Constans
appointedCaesarBy	Constantinus Magnus ⓘ surface form: Constantine the Great
appointedCaesarYear	333 ⓘ
battle	Battle near Aquileia ⓘ
becameAugustusYear	337 ⓘ
birthDate	c. 323 ⓘ
causeOfDeath	assassination ⓘ
coEmperorWith	Constantine II ⓘ Constantius II ⓘ
conflict	war with Constantine II ⓘ
country	Roman Empire ⓘ
culture	Roman ⓘ
deathDate	350 ⓘ
deathYear	350 ⓘ
dynasty	Constantinian dynasty ⓘ
era	Late Antiquity ⓘ
father	Constantinus Magnus ⓘ surface form: Constantine the Great
givenName	Constans self-link ⓘ
killedBy	Magnentius ⓘ
language	Latin ⓘ
legalAct	issued laws against pagan sacrifices ⓘ issued laws concerning church property ⓘ
militaryCampaign	campaigns in Britain ⓘ campaigns on the Danube frontier ⓘ
mother	Fausta ⓘ
notableEvent	division of the Roman Empire among Constantine I’s sons in 337 ⓘ
overthrownBy	Magnentius ⓘ
overthrowYear	350 ⓘ
placeOfDeath	Vicus Helena ⓘ
positionHeld	Roman consul ⓘ Roman emperor ⓘ
reignEnd	350 ⓘ
reignStart	337 ⓘ
religion	Christianity ⓘ
religiousPolicy	supported Nicene Christianity ⓘ
ruledOver	Africa ⓘ Illyricum ⓘ Italy ⓘ Western Roman Empire ⓘ
sibling	Constantine II ⓘ Constantius II ⓘ Crispus ⓘ
title	Augustus ⓘ Caesar ⓘ

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: Constans
Description of subject: 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.

Referenced by (39)

Full triples — surface form annotated when it differs from this entity's canonical label.

Roman emperor Constantine the Great → child → Constans ⓘ

subject surface form: Constantine the Great

Roman emperor Constantine the Great → successor → Constans ⓘ

subject surface form: Constantine the Great

Crispus → sibling → Constans ⓘ

this entity surface form: Constans I

Constantina → sibling → Constans ⓘ

this entity surface form: Constans I

Caesar → heldBy → Constans ⓘ

subject surface form: Caesar (imperial title)

this entity surface form: Constans I

Naissus → birthplaceOf → Constans ⓘ

this entity surface form: Constans I

Fausta → child → Constans ⓘ

this entity surface form: Constans I

Constantinian dynasty → notableMember → Constans ⓘ

this entity surface form: Constans I

Constantius II → sibling → Constans ⓘ

this entity surface form: Constans I

Constantine II → sibling → Constans ⓘ

this entity surface form: Constans I

Constantine II → coRuler → Constans ⓘ

this entity surface form: Constans I

Constantine II → successor → Constans ⓘ

this entity surface form: Constans I

Constans → givenName → Constans self-link ⓘ

Constans → alsoKnownAs → Constans ⓘ

this entity surface form: Flavius Julius Constans

Constans → alsoKnownAs → Constans ⓘ

this entity surface form: Constans I

Constantinus Magnus → child → Constans ⓘ

Constantinus Magnus → successor → Constans ⓘ

Flavius Julius Crispus → sibling → Constans ⓘ

this entity surface form: Constans I

appears on Roman imperial coinage as Caesar → sibling → Constans ⓘ

subject surface form: Crispus

this entity surface form: Constans I

Annia (daughter of Constantius Gallus and Constantina) → relative → Constans ⓘ

this entity surface form: Constans I

Hannibalianus (son of Constantius Chlorus) → uncleOf → Constans ⓘ

this entity surface form: Constans I

Helena (daughter of Constantine I) → sibling → Constans ⓘ

Anastasia (daughter of Constantine I and Fausta) → sibling → Constans ⓘ

Dalmatius → relative → Constans ⓘ

this entity surface form: Constans I

House of Constantine → notableMember → Constans ⓘ

this entity surface form: Constans I

Flavius Dalmatius (the elder) → relative → Constans ⓘ

this entity surface form: Constans I

Theodora → relative → Constans ⓘ

this entity surface form: Constans I

Battle near Aquileia → participant → Constans ⓘ

Battle near Aquileia → hasParticipantRole → Constans ⓘ

this entity surface form: Constans as emperor

Vicus Helena → associatedWith → Constans ⓘ

this entity surface form: Emperor Constans

Magnentius → predecessor → Constans ⓘ

Magnentius → causedDeathOf → Constans ⓘ

Magnentius → usurpedTitleFrom → Constans ⓘ

Flavius Claudius Constantinus → sibling → Constans ⓘ

this entity surface form: Constans I

Flavius Claudius Constantinus → coRuler → Constans ⓘ

this entity surface form: Constans I

Vetranio → contemporaryWith → Constans ⓘ

this entity surface form: Constans I

Vetranio → predecessor → Constans ⓘ

this entity surface form: Constans I

Aurelius Ambrosius → siblingInLegend → Constans ⓘ

Ossius of Corduba → advisorTo → Constans ⓘ

this entity surface form: Constans I