XII Corps (Union Army of the Potomac)
E514429
XII Corps was a Union Army formation in the American Civil War, noted for its steadfast performance in major battles such as Gettysburg, where it played a crucial role on the Union right flank.
All labels observed (1)
| Label | Occurrences |
|---|---|
| XII Corps (Union Army of the Potomac) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5254324 — 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: XII Corps (Union Army of the Potomac) Context triple: [Culp's Hill, defendedBy, XII Corps (Union Army of the Potomac)]
-
A.
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.
-
B.
XVI Corps
XVI Corps is a major field formation of the Indian Army responsible for military operations in parts of the northern region of India.
-
C.
XVI Corps
XVI Corps was a field corps of the Ottoman Army that served on multiple fronts during World War I, including the Gallipoli and Caucasus campaigns.
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D.
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.
-
E.
XIII Corps
XIII Corps was a military formation designation used by several armies, most notably as a corps-level unit in the British and United States armies during major 20th-century conflicts.
- 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: XII Corps (Union Army of the Potomac) Target entity description: XII Corps was a Union Army formation in the American Civil War, noted for its steadfast performance in major battles such as Gettysburg, where it played a crucial role on the Union right flank.
-
A.
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.
-
B.
XVI Corps
XVI Corps is a major field formation of the Indian Army responsible for military operations in parts of the northern region of India.
-
C.
XVI Corps
XVI Corps was a field corps of the Ottoman Army that served on multiple fronts during World War I, including the Gallipoli and Caucasus campaigns.
-
D.
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.
-
E.
XIII Corps
XIII Corps was a military formation designation used by several armies, most notably as a corps-level unit in the British and United States armies during major 20th-century conflicts.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Union Army formation
ⓘ
military corps ⓘ |
| allegiance | Union NERFINISHED ⓘ |
| alsoKnownAs | Twelfth Army Corps NERFINISHED ⓘ |
| branch | Union Army infantry ⓘ |
| commander |
Alpheus S. Williams
NERFINISHED
ⓘ
Henry W. Slocum NERFINISHED ⓘ Joseph K. Mansfield NERFINISHED ⓘ |
| conflict | American Civil War ⓘ |
| country | United States of America ⓘ |
| distinction | one of the smaller corps in the Army of the Potomac ⓘ |
| engagedIn |
Atlanta Campaign
NERFINISHED
ⓘ
Battle of Antietam NERFINISHED ⓘ Battle of Cedar Mountain NERFINISHED ⓘ Battle of Chancellorsville NERFINISHED ⓘ Battle of Fredericksburg NERFINISHED ⓘ Battle of Gettysburg NERFINISHED ⓘ Battle of Kennesaw Mountain NERFINISHED ⓘ Battle of Lookout Mountain NERFINISHED ⓘ Battle of Peachtree Creek NERFINISHED ⓘ Battle of Resaca NERFINISHED ⓘ Battle of Wauhatchie NERFINISHED ⓘ Chattanooga Campaign NERFINISHED ⓘ Second Battle of Bull Run NERFINISHED ⓘ |
| formedFrom |
II Corps (Army of Virginia)
NERFINISHED
ⓘ
XI Corps (Army of Virginia) NERFINISHED ⓘ |
| laterMergedInto | XX Corps (Union Army) NERFINISHED ⓘ |
| laterPartOf | Army of the Cumberland NERFINISHED ⓘ |
| notedBrigade | Greene's brigade at Culp's Hill ⓘ |
| notedCommander | George S. Greene NERFINISHED ⓘ |
| notedFor |
defense of the Union right flank at Gettysburg
ⓘ
steadfast performance in battle ⓘ |
| partOf | Army of the Potomac NERFINISHED ⓘ |
| primaryFunction | field operations as part of main Union armies ⓘ |
| reputation |
reliable in defense
ⓘ
steadfast under fire ⓘ |
| roleAtGettysburg |
held Culp's Hill on the Union right
ⓘ
reinforced threatened sectors of the Union line ⓘ |
| size | two divisions ⓘ |
| subordinateUnit |
1st Division, XII Corps
NERFINISHED
ⓘ
2nd Division, XII Corps NERFINISHED ⓘ |
| theater |
Eastern Theater of the American Civil War
NERFINISHED
ⓘ
Western Theater of the American Civil War NERFINISHED ⓘ |
| type | field corps-level formation ⓘ |
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: XII Corps (Union Army of the Potomac) Description of subject: XII Corps was a Union Army formation in the American Civil War, noted for its steadfast performance in major battles such as Gettysburg, where it played a crucial role on the Union right flank.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.