Jacob van Heemskerck
E473819
Jacob van Heemskerck was a Dutch explorer and naval commander of the late 16th and early 17th centuries, known for his Arctic voyages and role in the Dutch–Portuguese naval conflicts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Jacob van Heemskerck canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4834372 — 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: Jacob van Heemskerck Context triple: [Heemskerck, namedAfter, Jacob van Heemskerck]
-
A.
Lucas Janszoon Waghenaer
Lucas Janszoon Waghenaer was a pioneering Dutch navigator and cartographer best known for his influential late 16th-century sea atlases that greatly advanced European maritime navigation.
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B.
Dirck van der Lisse
Dirck van der Lisse was a 17th-century Dutch Golden Age painter known for his landscapes and association with the circle of Jan van Goyen.
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C.
Maarten van Heemskerck
Maarten van Heemskerck was a prominent 16th-century Dutch painter and print designer known for his religious works, portraits, and influential drawings of classical ruins made during his travels in Italy.
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D.
Cornelis de Vos
Cornelis de Vos was a prominent Flemish Baroque painter known for his refined portraits and religious scenes in early 17th-century Antwerp.
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E.
Adriaan Metius
Adriaan Metius was a Dutch mathematician and astronomer of the late 16th and early 17th centuries, known for his work on geometry, surveying, and approximations of π.
- 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: Jacob van Heemskerck Target entity description: Jacob van Heemskerck was a Dutch explorer and naval commander of the late 16th and early 17th centuries, known for his Arctic voyages and role in the Dutch–Portuguese naval conflicts.
-
A.
Lucas Janszoon Waghenaer
Lucas Janszoon Waghenaer was a pioneering Dutch navigator and cartographer best known for his influential late 16th-century sea atlases that greatly advanced European maritime navigation.
-
B.
Dirck van der Lisse
Dirck van der Lisse was a 17th-century Dutch Golden Age painter known for his landscapes and association with the circle of Jan van Goyen.
-
C.
Maarten van Heemskerck
Maarten van Heemskerck was a prominent 16th-century Dutch painter and print designer known for his religious works, portraits, and influential drawings of classical ruins made during his travels in Italy.
-
D.
Cornelis de Vos
Cornelis de Vos was a prominent Flemish Baroque painter known for his refined portraits and religious scenes in early 17th-century Antwerp.
-
E.
Adriaan Metius
Adriaan Metius was a Dutch mathematician and astronomer of the late 16th and early 17th centuries, known for his work on geometry, surveying, and approximations of π.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Dutch explorer
ⓘ
admiral ⓘ human ⓘ naval commander ⓘ |
| causeOfDeath | battle injury ⓘ |
| centuryOfActivity |
16th century
ⓘ
17th century ⓘ |
| commanded |
Dutch fleet at Gibraltar in 1607
ⓘ
ships of the Dutch East India Company ⓘ |
| countryOfCitizenship |
Dutch Republic
ⓘ
Habsburg Netherlands NERFINISHED ⓘ |
| dateOfBirth | 1567-03-13 ⓘ |
| dateOfDeath | 1607-04-25 ⓘ |
| employer |
Dutch East India Company
NERFINISHED
ⓘ
States-General of the Netherlands NERFINISHED ⓘ |
| ethnicGroup | Dutch ⓘ |
| fieldOfWork |
maritime exploration
ⓘ
naval warfare ⓘ navigation ⓘ |
| hasRelative | Jacob van Heemskerck (grandson) NERFINISHED ⓘ |
| knownFor |
Arctic voyages
ⓘ
Battle of Gibraltar victory over Spain NERFINISHED ⓘ Dutch–Portuguese naval conflicts NERFINISHED ⓘ early Dutch East India Company expeditions ⓘ |
| languageSpoken | Dutch ⓘ |
| mannerOfDeath | killed in action ⓘ |
| militaryBranch | Dutch navy NERFINISHED ⓘ |
| name | Jacob van Heemskerck NERFINISHED ⓘ |
| notableAchievement |
captured Portuguese carrack Santa Catarina near Singapore
ⓘ
co-led 1596–1597 expedition that discovered Spitsbergen ⓘ commanded Dutch fleet at the Battle of Gibraltar in 1607 ⓘ contributed to opening of northern sea routes for the Dutch ⓘ wintered in Nova Zembla during Arctic expedition ⓘ |
| notableWork |
Arctic voyage of 1596–1597
ⓘ
Battle of Gibraltar (1607) NERFINISHED ⓘ Dutch–Portuguese naval conflicts NERFINISHED ⓘ |
| occupation |
admiral
ⓘ
explorer ⓘ naval officer ⓘ |
| participantIn |
1596–1597 Barents Arctic expedition
NERFINISHED
ⓘ
Arctic exploration voyages NERFINISHED ⓘ Battle of Gibraltar NERFINISHED ⓘ Dutch–Portuguese War NERFINISHED ⓘ Eighty Years' War NERFINISHED ⓘ |
| placeOfBirth |
Amsterdam
NERFINISHED
ⓘ
County of Holland NERFINISHED ⓘ Habsburg Netherlands NERFINISHED ⓘ |
| placeOfDeath |
Strait of Gibraltar
NERFINISHED
ⓘ
near Gibraltar ⓘ |
| sexOrGender | male ⓘ |
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: Jacob van Heemskerck Description of subject: Jacob van Heemskerck was a Dutch explorer and naval commander of the late 16th and early 17th centuries, known for his Arctic voyages and role in the Dutch–Portuguese naval conflicts.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.