Frederick, Duke of Saxe-Altenburg
E526951
Frederick, Duke of Saxe-Altenburg was a 19th-century German nobleman who ruled the small Thuringian duchy of Saxe-Altenburg and belonged to the Ernestine branch of the Wettin dynasty.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Frederick, Duke of Saxe-Altenburg canonical | 2 |
| Friedrich, Duke of Saxe-Altenburg | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4940598 — 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: Frederick, Duke of Saxe-Altenburg Context triple: [Therese of Saxe-Hildburghausen, father, Frederick, Duke of Saxe-Altenburg]
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A.
Frederick II, Duke of Saxe-Gotha-Altenburg
Frederick II, Duke of Saxe-Gotha-Altenburg was an 18th-century German prince of the Ernestine Wettin line, noted as the ruler of the small Thuringian duchy of Saxe-Gotha-Altenburg and the father of Princess Augusta, who became Princess of Wales.
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B.
Frederick Charles Ferdinand, Duke of Brunswick-Bevern
Frederick Charles Ferdinand, Duke of Brunswick-Bevern, was an 18th-century German prince and Prussian field marshal from a cadet branch of the House of Brunswick who distinguished himself in the Seven Years' War.
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C.
Frederick Augustus, Duke of Nassau
Frederick Augustus, Duke of Nassau was a German nobleman who became the inaugural ruler of the Duchy of Nassau in the early 19th century.
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D.
Otto, Duke of Brunswick-Grubenhagen
Otto, Duke of Brunswick-Grubenhagen, was a 14th-century German prince of the Welf dynasty who became King of Naples through his marriage to Queen Joanna I.
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E.
Frederick III, Prince of Salm-Kyrburg
Frederick III, Prince of Salm-Kyrburg was an 18th-century German nobleman and military officer who became a prominent figure at the French court and was executed during the French Revolution.
- 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: Frederick, Duke of Saxe-Altenburg Target entity description: Frederick, Duke of Saxe-Altenburg was a 19th-century German nobleman who ruled the small Thuringian duchy of Saxe-Altenburg and belonged to the Ernestine branch of the Wettin dynasty.
-
A.
Frederick II, Duke of Saxe-Gotha-Altenburg
Frederick II, Duke of Saxe-Gotha-Altenburg was an 18th-century German prince of the Ernestine Wettin line, noted as the ruler of the small Thuringian duchy of Saxe-Gotha-Altenburg and the father of Princess Augusta, who became Princess of Wales.
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B.
Frederick Charles Ferdinand, Duke of Brunswick-Bevern
Frederick Charles Ferdinand, Duke of Brunswick-Bevern, was an 18th-century German prince and Prussian field marshal from a cadet branch of the House of Brunswick who distinguished himself in the Seven Years' War.
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C.
Frederick Augustus, Duke of Nassau
Frederick Augustus, Duke of Nassau was a German nobleman who became the inaugural ruler of the Duchy of Nassau in the early 19th century.
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D.
Otto, Duke of Brunswick-Grubenhagen
Otto, Duke of Brunswick-Grubenhagen, was a 14th-century German prince of the Welf dynasty who became King of Naples through his marriage to Queen Joanna I.
-
E.
Frederick III, Prince of Salm-Kyrburg
Frederick III, Prince of Salm-Kyrburg was an 18th-century German nobleman and military officer who became a prominent figure at the French court and was executed during the French Revolution.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
German nobleman
ⓘ
duke ⓘ human ⓘ member of the House of Wettin ⓘ |
| aristocraticTitle | Duke ⓘ |
| continent | Europe ⓘ |
| countryOfCitizenship | German Confederation ⓘ |
| ethnicGroup | German ⓘ |
| givenName | Frederick ⓘ |
| hasTerritorialBase | Saxe-Altenburg ⓘ |
| isSubjectOf |
German nobility history
ⓘ
history of Thuringian states ⓘ |
| memberOfDynasty |
Ernestine branch of the House of Wettin
ⓘ
House of Wettin ⓘ |
| nobleFamily |
Wettin dynasty
ⓘ
linked to:
House of Wettin
|
| nobleTitle | Duke of Saxe-Altenburg ⓘ |
| occupation |
nobleman
ⓘ
ruler ⓘ |
| partOf | Ernestine duchies ⓘ |
| positionHeld | Duke of Saxe-Altenburg ⓘ |
| region | Thuringia ⓘ |
| residence | Saxe-Altenburg ⓘ |
| ruled |
Duchy of Saxe-Altenburg
ⓘ
Thuringian duchy of Saxe-Altenburg ⓘ
linked to:
Duchy of Saxe-Altenburg
|
| sexOrGender | male ⓘ |
| timePeriod | 19th century ⓘ |
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: Frederick, Duke of Saxe-Altenburg Description of subject: Frederick, Duke of Saxe-Altenburg was a 19th-century German nobleman who ruled the small Thuringian duchy of Saxe-Altenburg and belonged to the Ernestine branch of the Wettin dynasty.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Frederick, Duke of Saxe-Altenburg