Byzantine Emperor Alexios III Angelos

E241193

Byzantine emperor human

Byzantine Emperor Alexios III Angelos was a late 12th- to early 13th-century ruler of the Byzantine Empire whose weak leadership and mismanagement contributed to the empire’s decline and the events leading up to the Fourth Crusade.

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All labels observed (4)

Label	Occurrences
Alexios III Angelos	9
Alexius III Angelos	1
Byzantine Emperor Alexios III Angelos canonical	1
Emperor Alexios V Doukas	1

How this entity was disambiguated

This entity first appeared as the object of triple T1744154 — 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: Byzantine Emperor Alexios III Angelos
Context triple: [Hilandar Monastery, foundedBy, Byzantine Emperor Alexios III Angelos]

A. Dimitrios I of Constantinople
Dimitrios I of Constantinople was the Ecumenical Patriarch of Constantinople who led the Eastern Orthodox Church during the mid-20th century, noted for his efforts in ecumenical dialogue and church renewal.
B. Manuel Kantakouzenos
Manuel Kantakouzenos was a 14th-century Byzantine prince and military leader who became the first ruler of the Despotate of the Morea in the Peloponnese.
C. Theodore I Palaiologos
Theodore I Palaiologos was a late 14th- to early 15th-century Byzantine prince of the Palaiologos dynasty who became the inaugural ruler of the semi-autonomous Despotate of the Morea in the Peloponnese.
D. Baldwin II of Constantinople
Baldwin II of Constantinople was the last Latin emperor of Constantinople, whose troubled reign was marked by financial hardship, territorial losses, and the eventual fall of the Latin Empire in 1261.
E. Constantine Palaiologos
Constantine Palaiologos was the last Byzantine emperor, remembered for his defense and death during the fall of Constantinople in 1453.
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: Byzantine Emperor Alexios III Angelos
Target entity description: Byzantine Emperor Alexios III Angelos was a late 12th- to early 13th-century ruler of the Byzantine Empire whose weak leadership and mismanagement contributed to the empire’s decline and the events leading up to the Fourth Crusade.

A. Dimitrios I of Constantinople
Dimitrios I of Constantinople was the Ecumenical Patriarch of Constantinople who led the Eastern Orthodox Church during the mid-20th century, noted for his efforts in ecumenical dialogue and church renewal.
B. Manuel Kantakouzenos
Manuel Kantakouzenos was a 14th-century Byzantine prince and military leader who became the first ruler of the Despotate of the Morea in the Peloponnese.
C. Theodore I Palaiologos
Theodore I Palaiologos was a late 14th- to early 15th-century Byzantine prince of the Palaiologos dynasty who became the inaugural ruler of the semi-autonomous Despotate of the Morea in the Peloponnese.
D. Baldwin II of Constantinople
Baldwin II of Constantinople was the last Latin emperor of Constantinople, whose troubled reign was marked by financial hardship, territorial losses, and the eventual fall of the Latin Empire in 1261.
E. Constantine Palaiologos
Constantine Palaiologos was the last Byzantine emperor, remembered for his defense and death during the fall of Constantinople in 1453.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	Byzantine emperor ⓘ human ⓘ
birthPlace	Byzantine Empire ⓘ
capitalDuringReign	Constantinople ⓘ linked to: Constantinople (probable)
capturedBy	Boniface I of Montferrat ⓘ
causeOf	fiscal mismanagement and heavy taxation in the Byzantine Empire ⓘ military decline of the Byzantine Empire in the late 12th century ⓘ political instability in Constantinople ⓘ
conflict	Bulgarian–Byzantine conflicts ⓘ linked to: Byzantine–Bulgarian wars Fourth Crusade ⓘ
country	Byzantine Empire ⓘ
deathApproximateYear	1211 ⓘ
deathPlace	Nicaea ⓘ
era	early 13th century ⓘ late 12th century ⓘ
event	coup against Isaac II Angelos in 1195 ⓘ flight from Constantinople during the Fourth Crusade ⓘ
father	Andronikos Doukas Angelos ⓘ linked to: Andronikos Doukas
fledTo	Asia Minor ⓘ Thrace ⓘ
historicalAssessment	considered one of the most ineffectual Byzantine emperors ⓘ
imprisonedBy	Theodore I Laskaris ⓘ
lostTerritory	parts of the Balkans ⓘ territories in Asia Minor ⓘ
memberOfDynasty	Angelid dynasty ⓘ
mother	Euphrosyne Kastamonitissa ⓘ
notableEventDuringReign	approach and siege of Constantinople by the Fourth Crusade ⓘ linked to: Sack of Constantinople in 1204 increasing Venetian influence in Byzantine affairs ⓘ
notableFor	contributing to the conditions leading to the Fourth Crusade ⓘ overthrowing his brother Isaac II Angelos in a coup ⓘ weak leadership and mismanagement of the Byzantine Empire ⓘ
policy	debasement of the Byzantine currency ⓘ sale of offices and corruption in administration ⓘ
positionHeld	Emperor of the Romans ⓘ
predecessor	Isaac II Angelos ⓘ
reignEnd	1203 ⓘ
reignStart	1195 ⓘ
relative	Alexios IV Angelos ⓘ Theodore I Laskaris ⓘ
religion	Eastern Orthodox Church ⓘ linked to: Eastern Orthodox Christianity
residence	Constantinople ⓘ linked to: Constantinople (probable)
sibling	Isaac II Angelos ⓘ
spouse	Euphrosyne Doukaina Kamatera ⓘ linked to: Euphrosyne Kastamonitissa
successor	Alexios IV Angelos ⓘ Isaac II Angelos ⓘ
title	Autokrator of the Romans ⓘ linked to: Emperor of the Romans Basileus ton Rhomaion ⓘ linked to: Basileus

How these facts were elicited