Frederick William, Duke of Nassau
E486949
Frederick William, Duke of Nassau was a 19th-century German nobleman who ruled the Duchy of Nassau until its annexation by Prussia in 1866.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Frederick William, Duke of Nassau canonical | 1 |
| Frederick William, Prince of Nassau-Weilburg | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3569822 — 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 William, Duke of Nassau Context triple: [Duke of Nassau, titleHolder, Frederick William, Duke of Nassau]
-
A.
Frederick William, Duke of Brunswick-Wolfenbüttel
Frederick William, Duke of Brunswick-Wolfenbüttel was a German nobleman and military leader who ruled the Duchy of Brunswick in the early 19th century and became known for his opposition to Napoleonic domination.
-
B.
Charles Christian, Prince of Nassau-Weilburg
Charles Christian, Prince of Nassau-Weilburg, was an 18th-century German nobleman of the House of Nassau who ruled Nassau-Weilburg and played a significant role in the regional politics of the Holy Roman Empire.
-
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.
-
D.
Frederick Louis, Count Palatine of Zweibrücken
Frederick Louis, Count Palatine of Zweibrücken, was a 17th-century German prince of the Wittelsbach dynasty who ruled the small Palatine territory of Zweibrücken within the Holy Roman Empire.
-
E.
Henry Casimir I of Nassau-Dietz
Henry Casimir I of Nassau-Dietz was a 17th-century Dutch nobleman and military leader who served as Stadtholder of Friesland, Groningen, and Drenthe during the Eighty Years' War.
- 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 William, Duke of Nassau Target entity description: Frederick William, Duke of Nassau was a 19th-century German nobleman who ruled the Duchy of Nassau until its annexation by Prussia in 1866.
-
A.
Frederick William, Duke of Brunswick-Wolfenbüttel
Frederick William, Duke of Brunswick-Wolfenbüttel was a German nobleman and military leader who ruled the Duchy of Brunswick in the early 19th century and became known for his opposition to Napoleonic domination.
-
B.
Charles Christian, Prince of Nassau-Weilburg
Charles Christian, Prince of Nassau-Weilburg, was an 18th-century German nobleman of the House of Nassau who ruled Nassau-Weilburg and played a significant role in the regional politics of the Holy Roman Empire.
-
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.
-
D.
Frederick Louis, Count Palatine of Zweibrücken
Frederick Louis, Count Palatine of Zweibrücken, was a 17th-century German prince of the Wittelsbach dynasty who ruled the small Palatine territory of Zweibrücken within the Holy Roman Empire.
-
E.
Henry Casimir I of Nassau-Dietz
Henry Casimir I of Nassau-Dietz was a 17th-century Dutch nobleman and military leader who served as Stadtholder of Friesland, Groningen, and Drenthe during the Eighty Years' War.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
19th-century German person
ⓘ
German nobleman ⓘ duke ⓘ human ⓘ monarch ⓘ |
| associatedWith |
Austro-Prussian War
NERFINISHED
ⓘ
Prussian annexations of 1866 NERFINISHED ⓘ |
| child |
Prince Nicholas of Nassau
NERFINISHED
ⓘ
Prince William of Nassau NERFINISHED ⓘ Princess Augusta of Nassau NERFINISHED ⓘ Princess Helene of Nassau NERFINISHED ⓘ Princess Hilda of Nassau NERFINISHED ⓘ Princess Luise of Nassau NERFINISHED ⓘ Princess Marie of Nassau NERFINISHED ⓘ Princess Sophia of Nassau NERFINISHED ⓘ |
| countryOfCitizenship | Duchy of Nassau NERFINISHED ⓘ |
| endOfReignReason | annexation of Nassau by Prussia ⓘ |
| father | William, Duke of Nassau NERFINISHED ⓘ |
| givenName | Frederick William NERFINISHED ⓘ |
| historicalEra | 19th century ⓘ |
| historicalRegion | German Confederation NERFINISHED ⓘ |
| house | House of Nassau-Weilburg NERFINISHED ⓘ |
| monarchOf | Duchy of Nassau NERFINISHED ⓘ |
| mother | Princess Louise of Saxe-Hildburghausen NERFINISHED ⓘ |
| name | Frederick William, Duke of Nassau NERFINISHED ⓘ |
| nobleTitle | Duke of Nassau NERFINISHED ⓘ |
| notableEvent | lost his duchy during the Austro-Prussian War of 1866 ⓘ |
| notableFor | last reigning Duke of Nassau ⓘ |
| politicalStatusAfter1866 | mediatized German prince ⓘ |
| positionHeld | Duke of Nassau NERFINISHED ⓘ |
| predecessor | William, Duke of Nassau NERFINISHED ⓘ |
| reignEnd | 1866 ⓘ |
| reignStart | 1816 ⓘ |
| religion |
Protestant Christianity
ⓘ
surface form:
Protestantism
|
| spouse |
Princess Adelheid-Marie of Anhalt-Dessau
NERFINISHED
ⓘ
Princess Pauline of Württemberg NERFINISHED ⓘ |
| successor | none (duchy annexed by Prussia) ⓘ |
| territoryAnnexedBy | Kingdom of Prussia NERFINISHED ⓘ |
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 William, Duke of Nassau Description of subject: Frederick William, Duke of Nassau was a 19th-century German nobleman who ruled the Duchy of Nassau until its annexation by Prussia in 1866.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Frederick William, Prince of Nassau-Weilburg