Duke of Södermanland
E260929
The Duke of Södermanland was a Swedish ducal title historically associated with members of the royal family, notably held by the future King Charles IX of Sweden.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Duke of Södermanland canonical | 9 |
| Duke Charles of Södermanland | 4 |
| Charles, Duke of Södermanland | 1 |
| Duke Eric of Södermanland | 1 |
| Duke of Närke | 1 |
| Duke of Södermanland, Närke and Värmland | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2386677 — 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: Duke of Södermanland Context triple: [Charles IX of Sweden, positionHeld, Duke of Södermanland]
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A.
Birger Jarl
Birger Jarl was a 13th-century Swedish statesman and de facto ruler of Sweden, renowned for consolidating royal power and laying the foundations of the Swedish capital.
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B.
Duke of Schleswig
The Duke of Schleswig was a noble title historically associated with the rulers of the duchy of Schleswig, a strategically important territory between Denmark and the German states.
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C.
Prince Daniel, Duke of Västergötland
Prince Daniel, Duke of Västergötland, is a member of the Swedish royal family and the husband of Crown Princess Victoria of Sweden.
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D.
Duke of Holstein
The Duke of Holstein was a noble title associated with the rulership of the historical duchy of Holstein in what is now northern Germany and southern Denmark.
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E.
Duke of Holstein-Gottorp
The Duke of Holstein-Gottorp was the hereditary ruler of a north German ducal state centered in Schleswig-Holstein, historically linked to both the Danish crown and the Russian imperial family.
- 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: Duke of Södermanland Target entity description: The Duke of Södermanland was a Swedish ducal title historically associated with members of the royal family, notably held by the future King Charles IX of Sweden.
-
A.
Birger Jarl
Birger Jarl was a 13th-century Swedish statesman and de facto ruler of Sweden, renowned for consolidating royal power and laying the foundations of the Swedish capital.
-
B.
Duke of Schleswig
The Duke of Schleswig was a noble title historically associated with the rulers of the duchy of Schleswig, a strategically important territory between Denmark and the German states.
-
C.
Prince Daniel, Duke of Västergötland
Prince Daniel, Duke of Västergötland, is a member of the Swedish royal family and the husband of Crown Princess Victoria of Sweden.
-
D.
Duke of Holstein
The Duke of Holstein was a noble title associated with the rulership of the historical duchy of Holstein in what is now northern Germany and southern Denmark.
-
E.
Duke of Holstein-Gottorp
The Duke of Holstein-Gottorp was the hereditary ruler of a north German ducal state centered in Schleswig-Holstein, historically linked to both the Danish crown and the Russian imperial family.
- F. None of above. chosen
Statements (26)
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: Duke of Södermanland Description of subject: The Duke of Södermanland was a Swedish ducal title historically associated with members of the royal family, notably held by the future King Charles IX of Sweden.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Duke of Närke
subject surface form:
Gustav III of Sweden
this entity surface form:
Duke Eric of Södermanland
this entity surface form:
Duke Charles of Södermanland
this entity surface form:
Duke Charles of Södermanland
Union of Sweden and Polish–Lithuanian Commonwealth under personal union
→
hasOpponent
→
Duke of Södermanland
ⓘ
this entity surface form:
Duke Charles of Södermanland
subject surface form:
Charles IX of Sweden
subject surface form:
Charles IX of Sweden
this entity surface form:
Duke of Södermanland, Närke and Värmland
this entity surface form:
Charles, Duke of Södermanland
this entity surface form:
Duke Charles of Södermanland
subject surface form:
Gustav III of Sweden