Ivan Asen I
E296625
Ivan Asen I was a medieval Bulgarian tsar who, together with his brother Peter IV, led the successful uprising against Byzantine rule and helped establish the Second Bulgarian Empire in the late 12th century.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Ivan Asen I canonical | 5 |
| Ivan Asen I of Bulgaria | 3 |
| Ivan Asen | 1 |
| Tsar Ivan Asen I of Bulgaria | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2763403 — 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: Ivan Asen I Context triple: [Second Bulgarian Empire, firstRuler, Ivan Asen I]
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A.
Simeon I of Bulgaria
Simeon I of Bulgaria was a powerful medieval Bulgarian tsar whose reign (893–927) marked the political and cultural zenith of the First Bulgarian Empire and earned him the epithet "the Great."
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B.
Boris I of Bulgaria
Boris I of Bulgaria was the 9th-century Bulgarian monarch best known for converting his realm to Christianity and laying the foundations of Slavic literacy and culture.
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C.
Peter I of Bulgaria
Peter I of Bulgaria was a 10th-century tsar of the First Bulgarian Empire known for his long and relatively peaceful reign, during which Bulgaria strengthened its Christianity and diplomatic ties with Byzantium.
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D.
Khan Krum
Khan Krum was a powerful early 9th-century Bulgarian ruler known for expanding the First Bulgarian Empire and defeating the Byzantine Empire in major battles.
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E.
Samuel of Bulgaria
Samuel of Bulgaria was a medieval Tsar who led the First Bulgarian Empire at its height around the turn of the 11th century, fiercely resisting Byzantine expansion until its eventual conquest.
- 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: Ivan Asen I Target entity description: Ivan Asen I was a medieval Bulgarian tsar who, together with his brother Peter IV, led the successful uprising against Byzantine rule and helped establish the Second Bulgarian Empire in the late 12th century.
-
A.
Simeon I of Bulgaria
Simeon I of Bulgaria was a powerful medieval Bulgarian tsar whose reign (893–927) marked the political and cultural zenith of the First Bulgarian Empire and earned him the epithet "the Great."
-
B.
Boris I of Bulgaria
Boris I of Bulgaria was the 9th-century Bulgarian monarch best known for converting his realm to Christianity and laying the foundations of Slavic literacy and culture.
-
C.
Peter I of Bulgaria
Peter I of Bulgaria was a 10th-century tsar of the First Bulgarian Empire known for his long and relatively peaceful reign, during which Bulgaria strengthened its Christianity and diplomatic ties with Byzantium.
-
D.
Khan Krum
Khan Krum was a powerful early 9th-century Bulgarian ruler known for expanding the First Bulgarian Empire and defeating the Byzantine Empire in major battles.
-
E.
Samuel of Bulgaria
Samuel of Bulgaria was a medieval Tsar who led the First Bulgarian Empire at its height around the turn of the 11th century, fiercely resisting Byzantine expansion until its eventual conquest.
- F. None of above. chosen
Statements (45)
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: Ivan Asen I Description of subject: Ivan Asen I was a medieval Bulgarian tsar who, together with his brother Peter IV, led the successful uprising against Byzantine rule and helped establish the Second Bulgarian Empire in the late 12th century.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ivan Asen
this entity surface form:
Ivan Asen I of Bulgaria
this entity surface form:
Ivan Asen I of Bulgaria
this entity surface form:
Tsar Ivan Asen I of Bulgaria
this entity surface form:
Ivan Asen I of Bulgaria