Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha
E861045
Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha, was the eldest son and former heir of the last reigning duke of Saxe-Coburg and Gotha, whose morganatic marriage led to his renunciation of succession rights.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10386000 — 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: Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha Context triple: [Charles Edward, Duke of Albany, child, Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha]
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A.
Prince Leopold of Bavaria
Prince Leopold of Bavaria was a Bavarian prince and military officer from the House of Wittelsbach, notable as the father of Elisabeth of Bavaria, Queen of Belgium.
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B.
Prince Leopold of Anhalt-Köthen
Prince Leopold of Anhalt-Köthen was an early 18th-century German nobleman and music patron best known for employing Johann Sebastian Bach as his Kapellmeister.
-
C.
Prince Joseph of Saxe-Hildburghausen
Prince Joseph of Saxe-Hildburghausen was an 18th-century Austrian field marshal and nobleman best known for leading the Franco-Imperial army defeated by Frederick the Great at the Battle of Rossbach during the Seven Years' War.
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D.
Emil Leopold August, Duke of Saxe-Gotha-Altenburg
Emil Leopold August, Duke of Saxe-Gotha-Altenburg, was a German nobleman who ruled the small Thuringian duchy of Saxe-Gotha-Altenburg in the early 19th century and was the father of Princess Louise of Saxe-Gotha-Altenburg.
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E.
Karl Frederick of Saxe-Gotha-Altenburg
Karl Frederick of Saxe-Gotha-Altenburg was a German prince of the Ernestine Wettin line from the ducal house of Saxe-Gotha-Altenburg in the 18th century.
- 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: Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha Target entity description: Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha, was the eldest son and former heir of the last reigning duke of Saxe-Coburg and Gotha, whose morganatic marriage led to his renunciation of succession rights.
-
A.
Prince Leopold of Bavaria
Prince Leopold of Bavaria was a Bavarian prince and military officer from the House of Wittelsbach, notable as the father of Elisabeth of Bavaria, Queen of Belgium.
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B.
Prince Leopold of Anhalt-Köthen
Prince Leopold of Anhalt-Köthen was an early 18th-century German nobleman and music patron best known for employing Johann Sebastian Bach as his Kapellmeister.
-
C.
Prince Joseph of Saxe-Hildburghausen
Prince Joseph of Saxe-Hildburghausen was an 18th-century Austrian field marshal and nobleman best known for leading the Franco-Imperial army defeated by Frederick the Great at the Battle of Rossbach during the Seven Years' War.
-
D.
Emil Leopold August, Duke of Saxe-Gotha-Altenburg
Emil Leopold August, Duke of Saxe-Gotha-Altenburg, was a German nobleman who ruled the small Thuringian duchy of Saxe-Gotha-Altenburg in the early 19th century and was the father of Princess Louise of Saxe-Gotha-Altenburg.
-
E.
Karl Frederick of Saxe-Gotha-Altenburg
Karl Frederick of Saxe-Gotha-Altenburg was a German prince of the Ernestine Wettin line from the ducal house of Saxe-Gotha-Altenburg in the 18th century.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
hereditary prince
ⓘ
human ⓘ |
| after | German Revolution of 1918–1919, the duchy was abolished and he remained a pretender NERFINISHED ⓘ |
| aristocraticTitle | Hereditary Prince of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| birthName | Johann Leopold William Albert Ferdinand Victor NERFINISHED ⓘ |
| burialPlace | Waldfriedhof Beiersdorf NERFINISHED ⓘ |
| causeOfRenunciation | morganatic marriage ⓘ |
| countryOfCitizenship | German Empire NERFINISHED ⓘ |
| dateOfBirth | 1906-08-02 ⓘ |
| dateOfDeath | 1972-05-04 ⓘ |
| descent | British royal family (through his grandmother Princess Beatrice of the United Kingdom) ⓘ |
| era | 20th century ⓘ |
| ethnicGroup | German ⓘ |
| father | Charles Edward, Duke of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| fullName | Johann Leopold William Albert Ferdinand Victor NERFINISHED ⓘ |
| givenName | Johann Leopold NERFINISHED ⓘ |
| grandfather | Prince Leopold, Duke of Albany NERFINISHED ⓘ |
| grandmother | Princess Helena of Waldeck and Pyrmont NERFINISHED ⓘ |
| heirOf | Duchy of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| historicalRegion | Saxe-Coburg and Gotha NERFINISHED ⓘ |
| house | Saxe-Coburg and Gotha NERFINISHED ⓘ |
| marriageType | morganatic marriage ⓘ |
| memberOf | House of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| mother | Princess Victoria Adelaide of Schleswig-Holstein NERFINISHED ⓘ |
| nobleFamily | House of Wettin NERFINISHED ⓘ |
| nobleTitle | Prince of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| notableEvent | renunciation of succession rights following his morganatic marriage ⓘ |
| notableFor |
being the eldest son of the last reigning Duke of Saxe-Coburg and Gotha
ⓘ
renouncing succession rights to the headship of the House of Saxe-Coburg and Gotha ⓘ |
| paternalGrandmother | Princess Beatrice of the United Kingdom NERFINISHED ⓘ |
| placeOfBirth |
Callenberg Castle
NERFINISHED
ⓘ
Coburg NERFINISHED ⓘ |
| placeOfDeath |
Grein
NERFINISHED
ⓘ
Upper Austria NERFINISHED ⓘ |
| positionHeld | Hereditary Prince of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| religion | Lutheranism ⓘ |
| residence | Coburg NERFINISHED ⓘ |
| sexOrGender | male ⓘ |
| sibling |
Prince Friedrich Josias of Saxe-Coburg and Gotha
NERFINISHED
ⓘ
Prince Hubertus of Saxe-Coburg and Gotha NERFINISHED ⓘ Princess Sibylla of Saxe-Coburg and Gotha NERFINISHED ⓘ |
| spouse |
Feodora Freiin von der Horst
NERFINISHED
ⓘ
Maria Theresia Reindl NERFINISHED ⓘ |
| successionStatus |
excluded from succession to the headship of the House of Saxe-Coburg and Gotha
ⓘ
former heir apparent to the Duchy of Saxe-Coburg and Gotha ⓘ |
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: Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha Description of subject: Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha, was the eldest son and former heir of the last reigning duke of Saxe-Coburg and Gotha, whose morganatic marriage led to his renunciation of succession rights.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Charles Edward, Duke of Albany
→
child
→
Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha
ⓘ
Charles Edward, Duke of Saxe-Coburg and Gotha
→
child
→
Johann Leopold, Hereditary Prince of Saxe-Coburg and Gotha
ⓘ