Siege of Constantinople (626)

E266962
battle of the Byzantine–Sasanian War of 602–628 siege

The Siege of Constantinople in 626 was a major failed joint Avar and Sasanian attempt to capture the Byzantine capital, marking a decisive turning point in the Roman–Persian Wars.

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All labels observed (5)

Label Occurrences
Avar–Sasanian siege of Constantinople 1
Avar–Slavic siege of Constantinople (626) 1
Siege of Constantinople (626) canonical 1

Statements (47)

Predicate Object
instanceOf battle of the Byzantine–Sasanian War of 602–628 ⓘ
siege ⓘ
aftermath Byzantine strategic initiative against the Sasanian Empire ⓘ
contributed to collapse of Sasanian resistance by 628 ⓘ
weakening of Avar power in the Balkans ⓘ
alliance Avar–Sasanian coalition ⓘ
alsoKnownAs Siege of Constantinople (626) ⓘ
surface form: Avar–Sasanian siege of Constantinople
belligerent Avar Khaganate ⓘ
Bulgar auxiliaries ⓘ
Byzantine Empire ⓘ
Sasanian Empire ⓘ
Slavic auxiliaries ⓘ
chronology early 7th century ⓘ
commander Avar khagan ⓘ
Bonus (Byzantine general) ⓘ
Heraclius ⓘ
Patriarch Sergius I of Constantinople (posthumously) ⓘ
surface form: Patriarch Sergius I of Constantinople

Shahrbaraz ⓘ
conflictIn Roman–Persian Wars ⓘ
surface form: Byzantine–Sasanian War of 602–628
country Byzantine Empire ⓘ
defensiveWork Theodosian Walls ⓘ
sea walls of Constantinople ⓘ
endDate 626-08-07 ⓘ
feature Avar forces attacking land walls on the European side ⓘ
Sasanian forces positioned on the Asian side of the Bosporus ⓘ
use of Slavic monoxyla boats on the Golden Horn ⓘ
followedBy Byzantine counteroffensives in Mesopotamia and Persia ⓘ
historicalPeriod Late Antiquity ⓘ
location Constantinople (probable) ⓘ
surface form: Constantinople

Byzantine Empire ⓘ
surface form: Eastern Roman Empire
opponent Byzantine garrison of Constantinople ⓘ
Heraclius ⓘ
opposedBy citizens of Constantinople ⓘ
partOf Roman–Persian Wars ⓘ
precededBy Sasanian conquests in the Levant and Egypt ⓘ
relatedTo reign of Emperor Heraclius ⓘ
religiousAspect composition of the Akathist Hymn according to later tradition ⓘ
processions with the icon of the Theotokos ⓘ
result Byzantine victory ⓘ
failure of Avar–Sasanian attempt to capture Constantinople ⓘ
significance preservation of Constantinople as Byzantine capital ⓘ
turning point in the Byzantine–Sasanian War of 602–628 ⓘ
startDate 626-07-29 ⓘ
strategy joint land and river assault on Constantinople ⓘ
tactic naval defense of the Golden Horn by Byzantine fleet ⓘ
sorties from the city against besieging forces ⓘ
year 626 ⓘ

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: Siege of Constantinople (626)
Description of subject: The Siege of Constantinople in 626 was a major failed joint Avar and Sasanian attempt to capture the Byzantine capital, marking a decisive turning point in the Roman–Persian Wars.

Referenced by (5)

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

Roman–Persian Wars → significantEvent → Siege of Constantinople (626) ⓘ
Avar Khaganate → notableEvent → Siege of Constantinople (626) ⓘ
this entity surface form: siege of Constantinople (626)
George of Pisidia → wroteAbout → Siege of Constantinople (626) ⓘ
this entity surface form: Avar–Slavic siege of Constantinople (626)
Siege of Constantinople (626) → alsoKnownAs → Siege of Constantinople (626) ⓘ
this entity surface form: Avar–Sasanian siege of Constantinople
Avars → notableEvent → Siege of Constantinople (626) ⓘ
this entity surface form: Siege of Constantinople in 626 (with allies)