Mary Janssen
E350584
Mary Janssen was the mother of Frederick Calvert, 6th Baron Baltimore, a British nobleman and last in the line of the colonial proprietors of Maryland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mary Janssen canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3333865 — 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: Mary Janssen Context triple: [Frederick Calvert, 6th Baron Baltimore, mother, Mary Janssen]
-
A.
Virginia Jansen
Virginia Jansen is known as the spouse of American choral and orchestral conductor Robert Shaw.
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B.
Joan Maetsuycker
Joan Maetsuycker was a 17th-century Dutch colonial administrator who became one of the longest-serving and most influential leaders of the Dutch East India Company in Asia.
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C.
Astrid Nienhuis
Astrid Nienhuis is a Dutch politician who serves as the mayor of the municipality of Heemstede in the Netherlands.
-
D.
Marijke
Marijke is the baptismal name of Princess Christina of the Netherlands, the youngest daughter of Queen Juliana and Prince Bernhard.
-
E.
Francine Houben
Francine Houben is a renowned Dutch architect and creative director of the architecture firm Mecanoo, known for her human-centered, context-sensitive designs such as the Library of Birmingham and Delft University of Technology Library.
- 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: Mary Janssen Target entity description: Mary Janssen was the mother of Frederick Calvert, 6th Baron Baltimore, a British nobleman and last in the line of the colonial proprietors of Maryland.
-
A.
Virginia Jansen
Virginia Jansen is known as the spouse of American choral and orchestral conductor Robert Shaw.
-
B.
Joan Maetsuycker
Joan Maetsuycker was a 17th-century Dutch colonial administrator who became one of the longest-serving and most influential leaders of the Dutch East India Company in Asia.
-
C.
Astrid Nienhuis
Astrid Nienhuis is a Dutch politician who serves as the mayor of the municipality of Heemstede in the Netherlands.
-
D.
Marijke
Marijke is the baptismal name of Princess Christina of the Netherlands, the youngest daughter of Queen Juliana and Prince Bernhard.
-
E.
Francine Houben
Francine Houben is a renowned Dutch architect and creative director of the architecture firm Mecanoo, known for her human-centered, context-sensitive designs such as the Library of Birmingham and Delft University of Technology Library.
- F. None of above. chosen
Statements (12)
| Predicate | Object |
|---|---|
| instanceOf |
British nobleman
ⓘ
human ⓘ mother ⓘ |
| child | Frederick Calvert, 6th Baron Baltimore ⓘ |
| countryOfCitizenship | Kingdom of Great Britain ⓘ |
| mother | Mary Janssen ⓘ |
| notableFor | being the mother of Frederick Calvert, 6th Baron Baltimore ⓘ |
| positionHeld | colonial proprietor of Maryland ⓘ |
| residence | Kingdom of Great Britain ⓘ |
| seriesOrdinal | last colonial proprietor of Maryland ⓘ |
| sexOrGender | female ⓘ |
| title |
6th Baron Baltimore
ⓘ
linked to:
Frederick Calvert, 6th Baron Baltimore
|
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: Mary Janssen Description of subject: Mary Janssen was the mother of Frederick Calvert, 6th Baron Baltimore, a British nobleman and last in the line of the colonial proprietors of Maryland.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.