John XXIII (antipope)
E357278
John XXIII (antipope) was a rival claimant to the papacy during the Western Schism, recognized by the Pisan obedience but later deposed by the Council of Constance.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Antipope John XXIII | 2 |
| John XXIII (antipope) canonical | 2 |
| Antipope Alexander V | 1 |
| John XXIII (Pisan antipope) | 1 |
| Pisan antipope John XXIII | 1 |
| Pisan antipope John XXIII (Baldassare Cossa) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3439827 — 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: John XXIII (antipope) Context triple: [Western Schism, PisanLinePope, John XXIII (antipope)]
-
A.
antipope Felix V
Antipope Felix V was the last historical antipope, a 15th-century Duke of Savoy who was elected by the Council of Basel in opposition to Pope Eugene IV.
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B.
Wibert of Ravenna (Antipope Clement III)
Wibert of Ravenna, known as Antipope Clement III, was a rival pope set up by Holy Roman Emperor Henry IV during the Investiture Controversy, serving as the imperial-backed opponent to Pope Gregory VII and his successors.
-
C.
Pope Marcellus II
Pope Marcellus II was a mid-16th-century pontiff whose extremely brief papacy in 1555 is remembered for his reputation for reform and personal integrity during the era of the Counter-Reformation.
-
D.
Paschal III
Paschal III was a 12th-century antipope who opposed the legitimate papacy during the schism of the Roman Catholic Church with the backing of Holy Roman Emperor Frederick I Barbarossa.
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E.
Pope Benedict XIII
Pope Benedict XIII was a 15th-century antipope, born Pedro de Luna, who led the Avignon papacy during the Western Schism and was later declared illegitimate by the Roman Catholic Church.
- 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: John XXIII (antipope) Target entity description: John XXIII (antipope) was a rival claimant to the papacy during the Western Schism, recognized by the Pisan obedience but later deposed by the Council of Constance.
-
A.
antipope Felix V
Antipope Felix V was the last historical antipope, a 15th-century Duke of Savoy who was elected by the Council of Basel in opposition to Pope Eugene IV.
-
B.
Wibert of Ravenna (Antipope Clement III)
Wibert of Ravenna, known as Antipope Clement III, was a rival pope set up by Holy Roman Emperor Henry IV during the Investiture Controversy, serving as the imperial-backed opponent to Pope Gregory VII and his successors.
-
C.
Pope Marcellus II
Pope Marcellus II was a mid-16th-century pontiff whose extremely brief papacy in 1555 is remembered for his reputation for reform and personal integrity during the era of the Counter-Reformation.
-
D.
Paschal III
Paschal III was a 12th-century antipope who opposed the legitimate papacy during the schism of the Roman Catholic Church with the backing of Holy Roman Emperor Frederick I Barbarossa.
-
E.
Pope Benedict XIII
Pope Benedict XIII was a 15th-century antipope, born Pedro de Luna, who led the Avignon papacy during the Western Schism and was later declared illegitimate by the Roman Catholic Church.
- F. None of above. chosen
Statements (47)
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: John XXIII (antipope) Description of subject: John XXIII (antipope) was a rival claimant to the papacy during the Western Schism, recognized by the Pisan obedience but later deposed by the Council of Constance.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: John XXIII (antipope)
linked to: John XXIII (antipope)
linked to: John XXIII (antipope)
linked to: John XXIII (antipope)
linked to: John XXIII (antipope)
linked to: John XXIII (antipope)