Pope John XXI
E916305
Pope John XXI was a 13th-century pontiff, born Pedro Julião of Portugal, notable for being one of the few medically trained popes and for his brief reign from 1276 to 1277.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pope John XXI canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11275249 — 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: Pope John XXI Context triple: [Pope Nicholas III, predecessor, Pope John XXI]
-
A.
Pope Innocent IX
Pope Innocent IX was a briefly reigning 16th-century pope, serving in 1591 during the turbulent period of the Counter-Reformation.
-
B.
Pope John XXII
Pope John XXII was a 14th-century French-born pontiff of the Avignon Papacy known for his centralizing reforms, involvement in political conflicts, and influential but controversial theological positions.
-
C.
Pope John IV
Pope John IV was a 7th-century Bishop of Rome known for defending orthodox Christological doctrine and working to combat the Monothelite heresy.
-
D.
Pope Gregory X
Pope Gregory X was the head of the Catholic Church from 1271 to 1276, noted for convening the Second Council of Lyon and working to promote church reform and efforts at East–West Christian reunion.
-
E.
Pope Nicholas III
Pope Nicholas III was a 13th-century head of the Catholic Church and ruler of the Papal States, noted for his influential role in church politics and administration during the late Middle Ages.
- 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: Pope John XXI Target entity description: Pope John XXI was a 13th-century pontiff, born Pedro Julião of Portugal, notable for being one of the few medically trained popes and for his brief reign from 1276 to 1277.
-
A.
Pope Innocent IX
Pope Innocent IX was a briefly reigning 16th-century pope, serving in 1591 during the turbulent period of the Counter-Reformation.
-
B.
Pope John XXII
Pope John XXII was a 14th-century French-born pontiff of the Avignon Papacy known for his centralizing reforms, involvement in political conflicts, and influential but controversial theological positions.
-
C.
Pope John IV
Pope John IV was a 7th-century Bishop of Rome known for defending orthodox Christological doctrine and working to combat the Monothelite heresy.
-
D.
Pope Gregory X
Pope Gregory X was the head of the Catholic Church from 1271 to 1276, noted for convening the Second Council of Lyon and working to promote church reform and efforts at East–West Christian reunion.
-
E.
Pope Nicholas III
Pope Nicholas III was a 13th-century head of the Catholic Church and ruler of the Papal States, noted for his influential role in church politics and administration during the late Middle Ages.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Catholic priest
ⓘ
human ⓘ pope ⓘ |
| alsoKnownAs |
Ioannes XXI
NERFINISHED
ⓘ
John XXI NERFINISHED ⓘ Petrus Juliani NERFINISHED ⓘ |
| appointedBy | College of Cardinals NERFINISHED ⓘ |
| birthName |
Pedro Hispano
NERFINISHED
ⓘ
Pedro Julião NERFINISHED ⓘ |
| birthPlace |
Kingdom of Portugal
NERFINISHED
ⓘ
Lisbon NERFINISHED ⓘ |
| burialPlace | Viterbo Cathedral NERFINISHED ⓘ |
| causeOfDeath | building collapse ⓘ |
| chronologicalOrder | 187th pope ⓘ |
| countryOfCitizenship | Kingdom of Portugal NERFINISHED ⓘ |
| deathDate | 1277-05-20 ⓘ |
| deathPlace |
Papal States
ⓘ
Viterbo NERFINISHED ⓘ |
| era | High Middle Ages ⓘ |
| fieldOfWork |
logic
ⓘ
medicine ⓘ philosophy ⓘ theology ⓘ |
| floruit | 13th century ⓘ |
| languageOfWorkOrName | Latin NERFINISHED ⓘ |
| memberOf | College of Cardinals ⓘ |
| notableFor |
being one of the few medically trained popes
ⓘ
short pontificate ⓘ |
| occupation |
logician
ⓘ
philosopher ⓘ physician ⓘ pope ⓘ theologian ⓘ |
| papalNameTakenFrom | Pope John XIX NERFINISHED ⓘ |
| papalNumber | 21 ⓘ |
| partOf | 13th-century popes ⓘ |
| positionHeld |
Cardinal-bishop of Tusculum
ⓘ
Pope ⓘ |
| predecessor | Pope Adrian V NERFINISHED ⓘ |
| reignEnd | 1277-05-20 ⓘ |
| reignStart | 1276-09-08 ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholic Church
|
| residence | Viterbo NERFINISHED ⓘ |
| studiedAt |
University of Paris
NERFINISHED
ⓘ
University of Siena NERFINISHED ⓘ |
| successor | Pope Nicholas III NERFINISHED ⓘ |
| wrote | Summulae Logicales NERFINISHED ⓘ |
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: Pope John XXI Description of subject: Pope John XXI was a 13th-century pontiff, born Pedro Julião of Portugal, notable for being one of the few medically trained popes and for his brief reign from 1276 to 1277.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.