Leszek II the Black
E72832
Leszek II the Black was a 13th-century Piast duke of Kraków and Sieradz who played a key role in defending Polish territories during the Mongol invasions of Europe.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Leszek II the Black canonical | 11 |
| Leszek the Black | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T578843 — 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: Leszek II the Black Context triple: [Mongol invasions of Europe, opponentCommander, Leszek II the Black]
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A.
Duke Bolesław V the Chaste
Duke Bolesław V the Chaste was a 13th-century Polish Piast ruler of Kraków and Sandomierz, noted for his childless marriage, political struggles with neighboring dukes, and efforts to strengthen and develop his domains.
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B.
Jan Szczepański
Jan Szczepański was a Polish mountaineer known for participating in pioneering high-altitude ascents in the Andes.
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C.
Mikołaj Zebrzydowski
Mikołaj Zebrzydowski was a Polish nobleman and magnate best known for founding the Kalwaria Zebrzydowska pilgrimage complex and for leading the Zebrzydowski Rebellion against King Sigismund III Vasa in the early 17th century.
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D.
Danylo of Halych
Danylo of Halych was a 13th-century Ruthenian prince and later king who ruled the Kingdom of Galicia–Volhynia and played a key role in consolidating and defending the southwestern lands of Kievan Rus'.
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E.
Władysław IV Vasa
Władysław IV Vasa was a 17th-century King of Poland and Grand Duke of Lithuania from the Vasa dynasty, noted for his military leadership, cultural patronage, and involvement in Eastern European conflicts including Russia’s Time of Troubles.
- 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: Leszek II the Black Target entity description: Leszek II the Black was a 13th-century Piast duke of Kraków and Sieradz who played a key role in defending Polish territories during the Mongol invasions of Europe.
-
A.
Duke Bolesław V the Chaste
Duke Bolesław V the Chaste was a 13th-century Polish Piast ruler of Kraków and Sandomierz, noted for his childless marriage, political struggles with neighboring dukes, and efforts to strengthen and develop his domains.
-
B.
Jan Szczepański
Jan Szczepański was a Polish mountaineer known for participating in pioneering high-altitude ascents in the Andes.
-
C.
Mikołaj Zebrzydowski
Mikołaj Zebrzydowski was a Polish nobleman and magnate best known for founding the Kalwaria Zebrzydowska pilgrimage complex and for leading the Zebrzydowski Rebellion against King Sigismund III Vasa in the early 17th century.
-
D.
Danylo of Halych
Danylo of Halych was a 13th-century Ruthenian prince and later king who ruled the Kingdom of Galicia–Volhynia and played a key role in consolidating and defending the southwestern lands of Kievan Rus'.
-
E.
Władysław IV Vasa
Władysław IV Vasa was a 17th-century King of Poland and Grand Duke of Lithuania from the Vasa dynasty, noted for his military leadership, cultural patronage, and involvement in Eastern European conflicts including Russia’s Time of Troubles.
- F. None of above. chosen
Statements (47)
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: Leszek II the Black Description of subject: Leszek II the Black was a 13th-century Piast duke of Kraków and Sieradz who played a key role in defending Polish territories during the Mongol invasions of Europe.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Bolesław V the Chaste
subject surface form:
Bolesław V the Chaste
subject surface form:
Bolesław V the Chaste
this entity surface form:
Leszek the Black
subject surface form:
Bolesław V the Chaste