III Corps, Army of the Potomac
E505586
III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 3rd Division, III Corps, Army of the Potomac | 1 |
| III Corps (Union Army of the Potomac) | 1 |
| III Corps, Army of the Potomac canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5149896 — 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: III Corps, Army of the Potomac Context triple: [Fighting at the Peach Orchard, associatedUnitUnion, III Corps, Army of the Potomac]
-
A.
II Corps (Union Army of the Potomac)
II Corps of the Union Army of the Potomac was a major Civil War field corps renowned for its pivotal combat role and heavy engagement in key battles such as Antietam, Fredericksburg, Chancellorsville, and Gettysburg.
-
B.
French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
-
C.
XI Corps (Union Army of the Potomac)
XI Corps was a Union Army corps in the Army of the Potomac composed largely of German-American troops, noted for its controversial performances at battles such as Chancellorsville and Gettysburg.
-
D.
U.S. XIX Corps
The U.S. XIX Corps was a World War II United States Army corps that played a key role in the Allied advance across Western Europe, including major operations in Germany.
-
E.
Union V Corps
Union V Corps was a major infantry formation of the Union Army of the Potomac during the American Civil War, noted for its significant combat role in key battles such as Gettysburg.
- 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: III Corps, Army of the Potomac Target entity description: III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
-
A.
II Corps (Union Army of the Potomac)
II Corps of the Union Army of the Potomac was a major Civil War field corps renowned for its pivotal combat role and heavy engagement in key battles such as Antietam, Fredericksburg, Chancellorsville, and Gettysburg.
-
B.
French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
-
C.
XI Corps (Union Army of the Potomac)
XI Corps was a Union Army corps in the Army of the Potomac composed largely of German-American troops, noted for its controversial performances at battles such as Chancellorsville and Gettysburg.
-
D.
U.S. XIX Corps
The U.S. XIX Corps was a World War II United States Army corps that played a key role in the Allied advance across Western Europe, including major operations in Germany.
-
E.
Union V Corps
Union V Corps was a major infantry formation of the Union Army of the Potomac during the American Civil War, noted for its significant combat role in key battles such as Gettysburg.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
army corps
ⓘ
military unit ⓘ |
| allegiance | Union ⓘ |
| branch | Union Army NERFINISHED ⓘ |
| commanderAtBattle |
Daniel E. Sickles at Battle of Gettysburg
ⓘ
Samuel P. Heintzelman during Peninsula Campaign ⓘ |
| conflict | American Civil War ⓘ |
| country | United States of America ⓘ |
| disbandedIn | 1864 ⓘ |
| engagedInBattle |
Battle of Chancellorsville
NERFINISHED
ⓘ
Battle of Fredericksburg NERFINISHED ⓘ Battle of Gettysburg NERFINISHED ⓘ Battle of Seven Pines NERFINISHED ⓘ Battle of Spotsylvania Court House NERFINISHED ⓘ Battle of Williamsburg NERFINISHED ⓘ Battle of the Wilderness NERFINISHED ⓘ Overland Campaign NERFINISHED ⓘ Peninsula Campaign NERFINISHED ⓘ Second Battle of Bull Run NERFINISHED ⓘ Seven Days Battles NERFINISHED ⓘ |
| formedIn | 1862 ⓘ |
| garrisonOrAssemblyLocation | Army of the Potomac field armies ⓘ |
| hadDivision |
1st Division, III Corps
NERFINISHED
ⓘ
2nd Division, III Corps NERFINISHED ⓘ 3rd Division, III Corps NERFINISHED ⓘ |
| notableCommander |
Daniel E. Sickles
NERFINISHED
ⓘ
David B. Birney NERFINISHED ⓘ George W. Getty NERFINISHED ⓘ Samuel P. Heintzelman NERFINISHED ⓘ |
| notableEvent | advanced to Peach Orchard salient at Gettysburg ⓘ |
| notedFor |
controversial deployment at Gettysburg
ⓘ
hard fighting ⓘ heavy casualties ⓘ |
| partOf | Army of the Potomac NERFINISHED ⓘ |
| reorganizedInto |
II Corps, Army of the Potomac
NERFINISHED
ⓘ
VI Corps, Army of the Potomac NERFINISHED ⓘ |
| side | Union NERFINISHED ⓘ |
| size | corps ⓘ |
| subordinateTo |
Major General George B. McClellan
NERFINISHED
ⓘ
Major General George G. Meade NERFINISHED ⓘ Major General Joseph Hooker NERFINISHED ⓘ |
| sufferedHeavyLossesAt |
Battle of Chancellorsville
NERFINISHED
ⓘ
Battle of Gettysburg NERFINISHED ⓘ |
| theater | Eastern Theater of the American Civil War NERFINISHED ⓘ |
| type | infantry corps ⓘ |
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: III Corps, Army of the Potomac Description of subject: III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Fighting at the Peach Orchard
this entity surface form:
III Corps (Union Army of the Potomac)
this entity surface form:
3rd Division, III Corps, Army of the Potomac