Leo III the Isaurian
E410227
Leo III the Isaurian was an 8th-century Byzantine emperor best known for initiating the first phase of Byzantine Iconoclasm and stabilizing the empire against external threats.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Leo III the Isaurian canonical | 14 |
| Emperor Leo III the Isaurian | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3602332 — 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: Leo III the Isaurian Context triple: [Byzantine Iconoclasm, significantPerson, Leo III the Isaurian]
-
A.
Constantine V
Constantine V was an 8th-century Byzantine emperor known for his strong iconoclast policies, military campaigns against the Bulgars and Arabs, and significant administrative and fiscal reforms.
-
B.
Emperor Constans II
Emperor Constans II was a 7th-century Byzantine emperor known for his long and turbulent reign marked by religious controversies, military conflicts with the Arabs, and an unusual relocation of the imperial court to Syracuse in Sicily.
-
C.
Leo IV the Khazar
Leo IV the Khazar was a Byzantine emperor of the Isaurian dynasty who ruled in the late 8th century and continued the iconoclast policies of his predecessors.
-
D.
Emperor Constantine IV
Emperor Constantine IV was a 7th-century Byzantine emperor known for defending Constantinople against Arab sieges and for his role in resolving the Monothelite controversy within the Christian Church.
-
E.
Leo V the Armenian
Leo V the Armenian was a 9th-century Byzantine emperor best known for restoring and enforcing iconoclasm within the 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: Leo III the Isaurian Target entity description: Leo III the Isaurian was an 8th-century Byzantine emperor best known for initiating the first phase of Byzantine Iconoclasm and stabilizing the empire against external threats.
-
A.
Constantine V
Constantine V was an 8th-century Byzantine emperor known for his strong iconoclast policies, military campaigns against the Bulgars and Arabs, and significant administrative and fiscal reforms.
-
B.
Emperor Constans II
Emperor Constans II was a 7th-century Byzantine emperor known for his long and turbulent reign marked by religious controversies, military conflicts with the Arabs, and an unusual relocation of the imperial court to Syracuse in Sicily.
-
C.
Leo IV the Khazar
Leo IV the Khazar was a Byzantine emperor of the Isaurian dynasty who ruled in the late 8th century and continued the iconoclast policies of his predecessors.
-
D.
Emperor Constantine IV
Emperor Constantine IV was a 7th-century Byzantine emperor known for defending Constantinople against Arab sieges and for his role in resolving the Monothelite controversy within the Christian Church.
-
E.
Leo V the Armenian
Leo V the Armenian was a 9th-century Byzantine emperor best known for restoring and enforcing iconoclasm within the empire.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Byzantine emperor
ⓘ
Christian ⓘ human ⓘ monarch ⓘ |
| alsoKnownAs |
Leo III
NERFINISHED
ⓘ
Leo III the Syrian NERFINISHED ⓘ Leo the Isaurian NERFINISHED ⓘ |
| birthDate | c. 685 ⓘ |
| birthName | Konon ⓘ |
| birthPlace |
Germanicia
ⓘ
surface form:
Germanikeia
|
| birthRegion | Commagene ⓘ |
| capitalDuringReign |
Constantinople (probable)
ⓘ
surface form:
Constantinople
|
| causeOfDeath | natural causes ⓘ |
| centuryOfActivity | 8th century ⓘ |
| child |
Anna
ⓘ
Constantine V NERFINISHED ⓘ |
| country | Byzantine Empire ⓘ |
| deathDate | 18 June 741 ⓘ |
| deathPlace |
Constantinople (probable)
ⓘ
surface form:
Constantinople
|
| dynasty | Isaurian dynasty ⓘ |
| era | Middle Byzantine period ⓘ |
| ethnicOrigin | Syrian ⓘ |
| fieldOfWork |
government
ⓘ
military leadership ⓘ religious policy ⓘ |
| implementedPolicy | iconoclastic policies ⓘ |
| issued | Ecloga ⓘ |
| languageOfRecord | Greek ⓘ |
| militaryConflict |
Arab–Byzantine wars
ⓘ
Second Arab siege of Constantinople (717–718) ⓘ
surface form:
Second Arab Siege of Constantinople
conflicts with the Umayyad Caliphate ⓘ |
| notableFor |
defending Constantinople during the Second Arab Siege
ⓘ
founding the Isaurian dynasty ⓘ initiating Byzantine Iconoclasm ⓘ reforming Byzantine law ⓘ |
| opposedBy | John of Damascus ⓘ |
| positionHeld |
Byzantine emperor
ⓘ
Emperor of the Romans ⓘ |
| predecessor |
Emperor Anastasius II
ⓘ
surface form:
Theodosius III
|
| reignEnd | 741 ⓘ |
| reignStart | 717 ⓘ |
| religion | Chalcedonian Christianity ⓘ |
| reorganized |
Byzantine themes of Asia Minor
ⓘ
surface form:
Byzantine themes in Asia Minor
|
| spouse | Maria ⓘ |
| strengthened | Byzantine frontier defenses ⓘ |
| successor | Constantine V NERFINISHED ⓘ |
| title |
Emperor of the Romans
ⓘ
surface form:
Basileus Rhomaion
|
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: Leo III the Isaurian Description of subject: Leo III the Isaurian was an 8th-century Byzantine emperor best known for initiating the first phase of Byzantine Iconoclasm and stabilizing the empire against external threats.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Byzantine Iconoclasm
Second Arab siege of Constantinople (717–718)
→
ByzantineEmperorDuringConflict
→
Leo III the Isaurian
ⓘ
subject surface form:
Germanus I of Constantinople
this entity surface form:
Emperor Leo III the Isaurian