Capture of Fort Griswold
E420355
The Capture of Fort Griswold was a 1781 Revolutionary War action in Groton, Connecticut, in which British forces stormed and seized the American fort, resulting in heavy Patriot casualties.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Battle of Fort Griswold | 1 |
| Capture of Fort Griswold canonical | 1 |
| Massacre at Fort Griswold | 1 |
| defenders of Fort Griswold | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4195113 — 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: Capture of Fort Griswold Context triple: [Battle of Groton Heights, objective, Capture of Fort Griswold]
-
A.
Battle of Stony Point
The Battle of Stony Point was a daring 1779 nighttime assault during the American Revolutionary War in which Continental forces captured a heavily fortified British position on the Hudson River.
-
B.
Battle of Rhode Island
The Battle of Rhode Island was a 1778 American Revolutionary War engagement in which Continental and French-allied forces attempted, but ultimately failed, to dislodge the British from Newport, Rhode Island.
-
C.
Battle of Pell's Point
The Battle of Pell's Point was a 1776 American Revolutionary War engagement in which Continental forces conducted a delaying action against British troops advancing on New York, helping George Washington's army avoid encirclement.
-
D.
Battle of Fort Loyal
The Battle of Fort Loyal was a 1690 attack by French and Wabanaki forces on the English settlement at Falmouth (in present-day Maine), resulting in the fort’s destruction and the massacre or capture of many inhabitants during King William’s War.
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E.
Battle of Long Island
The Battle of Long Island was a major early engagement of the American Revolutionary War in 1776, where British forces defeated George Washington’s Continental Army and gained control of New York City.
- 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: Capture of Fort Griswold Target entity description: The Capture of Fort Griswold was a 1781 Revolutionary War action in Groton, Connecticut, in which British forces stormed and seized the American fort, resulting in heavy Patriot casualties.
-
A.
Battle of Stony Point
The Battle of Stony Point was a daring 1779 nighttime assault during the American Revolutionary War in which Continental forces captured a heavily fortified British position on the Hudson River.
-
B.
Battle of Rhode Island
The Battle of Rhode Island was a 1778 American Revolutionary War engagement in which Continental and French-allied forces attempted, but ultimately failed, to dislodge the British from Newport, Rhode Island.
-
C.
Battle of Pell's Point
The Battle of Pell's Point was a 1776 American Revolutionary War engagement in which Continental forces conducted a delaying action against British troops advancing on New York, helping George Washington's army avoid encirclement.
-
D.
Battle of Fort Loyal
The Battle of Fort Loyal was a 1690 attack by French and Wabanaki forces on the English settlement at Falmouth (in present-day Maine), resulting in the fort’s destruction and the massacre or capture of many inhabitants during King William’s War.
-
E.
Battle of Long Island
The Battle of Long Island was a major early engagement of the American Revolutionary War in 1776, where British forces defeated George Washington’s Continental Army and gained control of New York City.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
battle
ⓘ
military engagement ⓘ |
| aftermath |
American garrison largely killed, wounded, or captured
ⓘ
Fort Griswold captured and American defenses at Groton Heights overrun ⓘ |
| alsoKnownAs | Battle of Groton Heights ⓘ |
| associatedWith |
Fort Griswold Battlefield State Park
ⓘ
Groton Monument ⓘ
surface form:
Groton Heights Monument
|
| belligerent |
Great Britain
ONNED1
ⓘ
United States of America ⓘ
surface form:
United States
|
| casualties |
heavy American casualties
ⓘ
relatively light British casualties ⓘ |
| category |
Battles involving Great Britain
ⓘ
Battles involving the United States ⓘ Conflicts in 1781 ⓘ History of Connecticut ⓘ |
| cause | British attempt to divert American and French forces from operations around New York and Virginia ⓘ |
| combatantCommander |
Benedict Arnold
ⓘ
surface form:
Brigadier General Benedict Arnold
Colonel William Ledyard ⓘ
surface form:
Lieutenant Colonel William Ledyard
|
| commander |
Benedict Arnold
ⓘ
William Ledyard ⓘ |
| conflict | American Revolutionary War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| date | 1781-09-06 ⓘ |
| defensiveWork | earthwork and stone fortification on Groton Heights ⓘ |
| forceStrength |
American garrison of several hundred militia
ⓘ
British force of roughly several hundred regulars and Loyalists ⓘ |
| garrisonCommanderDeath | William Ledyard killed after surrendering his sword ⓘ |
| historicalPeriod | late stages of the American Revolutionary War ⓘ |
| location | Groton, Connecticut ⓘ |
| memorializedBy |
Groton Monument
ⓘ
surface form:
Groton Battle Monument
|
| notableEvent |
killing of American defenders after the fort’s surrender
ⓘ
storming of the fort by British troops ⓘ |
| objective |
destruction of American military stores at New London and Groton
ⓘ
seizure of Fort Griswold ⓘ |
| partOf |
American Revolutionary War
ⓘ
New York and New England campaign of 1781 ⓘ |
| place |
Fort Griswold Battlefield State Park
ⓘ
surface form:
Fort Griswold
|
| relatedEvent |
British raid on New London, Connecticut
ⓘ
surface form:
British raid on New London (1781)
|
| relatedPlace | New London, Connecticut NERFINISHED ⓘ |
| result | British victory ⓘ |
| significance |
one of the last major British raids in New England during the war
ⓘ
remembered for high Patriot casualties and alleged massacre after surrender ⓘ |
| tacticalOutcome | British capture of fort but no major strategic change in war’s outcome ⓘ |
| theater | Northern theater of the American Revolutionary War ⓘ |
| typeOfAction | amphibious raid followed by land assault ⓘ |
| year | 1781 ⓘ |
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: Capture of Fort Griswold Description of subject: The Capture of Fort Griswold was a 1781 Revolutionary War action in Groton, Connecticut, in which British forces stormed and seized the American fort, resulting in heavy Patriot casualties.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Battle of Fort Griswold
this entity surface form:
Massacre at Fort Griswold
subject surface form:
William Ledyard
this entity surface form:
defenders of Fort Griswold