Siemowit II of Masovia
E1212552
UNEXPLORED
Siemowit II of Masovia was a 13th–14th century Polish duke from the Masovian branch of the Piast dynasty who ruled parts of Masovia and played a significant role in the regional politics of medieval Poland.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Siemowit II of Masovia canonical | 4 |
| Siemowit of Dobrzyń | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T14761065 — 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: Siemowit II of Masovia Context triple: [Piasts of Płock, notableMember, Siemowit II of Masovia]
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A.
Siemowit I of Masovia
Siemowit I of Masovia was a 13th-century Polish duke from the Piast dynasty who ruled parts of Masovia and played a key role in the regional politics of medieval Poland.
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B.
Leszek of Masovia
Leszek of Masovia was a 13th-century Polish Piast duke who ruled parts of the Masovian region and participated in the complex dynastic politics of medieval Poland.
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C.
Henry of Sandomierz
Henry of Sandomierz was a 12th-century Polish duke from the Piast dynasty who ruled the Sandomierz region and participated in crusading expeditions.
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D.
Kazimierz III of Gniewkowo
Kazimierz III of Gniewkowo was a 14th-century Polish duke from the Piast dynasty who ruled the small duchy of Gniewkowo in the Kuyavian region.
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E.
Konrad I of Masovia
Konrad I of Masovia was a 13th-century Polish duke from the Piast dynasty, known for inviting the Teutonic Knights into Prussia and for his attempts to gain control of Kraków and the Polish throne.
- 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: Siemowit II of Masovia Target entity description: Siemowit II of Masovia was a 13th–14th century Polish duke from the Masovian branch of the Piast dynasty who ruled parts of Masovia and played a significant role in the regional politics of medieval Poland.
-
A.
Siemowit I of Masovia
Siemowit I of Masovia was a 13th-century Polish duke from the Piast dynasty who ruled parts of Masovia and played a key role in the regional politics of medieval Poland.
-
B.
Leszek of Masovia
Leszek of Masovia was a 13th-century Polish Piast duke who ruled parts of the Masovian region and participated in the complex dynastic politics of medieval Poland.
-
C.
Henry of Sandomierz
Henry of Sandomierz was a 12th-century Polish duke from the Piast dynasty who ruled the Sandomierz region and participated in crusading expeditions.
-
D.
Kazimierz III of Gniewkowo
Kazimierz III of Gniewkowo was a 14th-century Polish duke from the Piast dynasty who ruled the small duchy of Gniewkowo in the Kuyavian region.
-
E.
Konrad I of Masovia
Konrad I of Masovia was a 13th-century Polish duke from the Piast dynasty, known for inviting the Teutonic Knights into Prussia and for his attempts to gain control of Kraków and the Polish throne.
- F. None of above. chosen
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Siemowit II of Masovia