Pope Pius IX
E24021
Pope Pius IX was the 19th-century head of the Catholic Church whose long pontificate saw the loss of the Papal States and the proclamation of papal infallibility.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pope Pius IX canonical | 69 |
| Pius IX | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T190028 — 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 Pius IX Context triple: [First Vatican Council, convenedBy, Pope Pius IX]
-
A.
Pope Leo XIII
Pope Leo XIII was the head of the Catholic Church from 1878 to 1903, known for his influential social encyclical *Rerum Novarum* and his strong promotion of Marian devotion and the Rosary.
-
B.
Pope Paul VI
Pope Paul VI was the head of the Catholic Church from 1963 to 1978, known for concluding the Second Vatican Council and implementing its reforms, modernizing Church governance and engaging in extensive ecumenical and diplomatic outreach.
-
C.
Pope Julius III
Pope Julius III was a 16th-century head of the Catholic Church whose papacy is chiefly remembered for his role in the Counter-Reformation and his decision to reconvene the Council of Trent.
-
D.
Pope
The Pope is the Bishop of Rome and spiritual leader of the worldwide Catholic Church, regarded as the successor of Saint Peter.
-
E.
Pope Paul V
Pope Paul V was a 17th-century head of the Catholic Church known for his role in the Counter-Reformation and for overseeing major architectural projects in Rome, including the completion of St. Peter's Basilica.
- 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 Pius IX Target entity description: Pope Pius IX was the 19th-century head of the Catholic Church whose long pontificate saw the loss of the Papal States and the proclamation of papal infallibility.
-
A.
Pope Leo XIII
Pope Leo XIII was the head of the Catholic Church from 1878 to 1903, known for his influential social encyclical *Rerum Novarum* and his strong promotion of Marian devotion and the Rosary.
-
B.
Pope Paul VI
Pope Paul VI was the head of the Catholic Church from 1963 to 1978, known for concluding the Second Vatican Council and implementing its reforms, modernizing Church governance and engaging in extensive ecumenical and diplomatic outreach.
-
C.
Pope Julius III
Pope Julius III was a 16th-century head of the Catholic Church whose papacy is chiefly remembered for his role in the Counter-Reformation and his decision to reconvene the Council of Trent.
-
D.
Pope
The Pope is the Bishop of Rome and spiritual leader of the worldwide Catholic Church, regarded as the successor of Saint Peter.
-
E.
Pope Paul V
Pope Paul V was a 17th-century head of the Catholic Church known for his role in the Counter-Reformation and for overseeing major architectural projects in Rome, including the completion of St. Peter's Basilica.
- F. None of above. chosen
Statements (58)
| Predicate | Object |
|---|---|
| instanceOf |
Catholic priest
ⓘ
Pope ⓘ human ⓘ |
| associatedWith |
Holy See
ⓘ
Papal States ⓘ Roman Curia ⓘ |
| authorOf |
Ineffabilis Deus
ⓘ
Quanta cura ⓘ Syllabus of Errors ⓘ |
| beatifiedBy | Pope John Paul II ⓘ |
| birthDate | 1792-05-13 ⓘ |
| birthName | Giovanni Maria Mastai-Ferretti ⓘ |
| birthPlace |
Marche region
ⓘ
surface form:
Marche
Papal States ⓘ Senigallia ⓘ |
| burialPlace | Basilica of San Lorenzo fuori le Mura ⓘ |
| convoked | First Vatican Council ⓘ |
| countryOfCitizenship | Papal States ⓘ |
| dateOfBeatification | 2000-09-03 ⓘ |
| dateOfCardinalElevation | 1840-12-14 ⓘ |
| deathDate | 1878-02-07 ⓘ |
| deathPlace |
Apostolic Palace
ⓘ
Kingdom of Italy ⓘ Rome ⓘ |
| electedAsPopeOn | 1846-06-16 ⓘ |
| elevatedToCardinalBy | Pope Gregory XVI ⓘ |
| endTime | 1878-02-07 ⓘ |
| era | 19th century ⓘ |
| familyName | Mastai-Ferretti ⓘ |
| givenName | Giovanni ⓘ |
| heldTitle |
Archbishop of Spoleto
ⓘ
Bishop of Imola ⓘ Cardinal-Priest of Santi Marcellino e Pietro ⓘ |
| knownFor |
defining papal infallibility at the First Vatican Council
ⓘ
longest verified papal reign ⓘ loss of the Papal States ⓘ proclaiming the dogma of the Immaculate Conception ⓘ |
| languageSpoken |
Italian
ⓘ
Latin ⓘ |
| memberOf | College of Cardinals ⓘ |
| notableWork | Syllabus of Errors ⓘ |
| ordinalInOffice | 255th Pope ⓘ |
| papalName |
Pope Pius IX
self-linksurface differs
ⓘ
surface form:
Pius IX
|
| politicalStance |
conservative on doctrinal and political issues
ⓘ
strongly opposed Italian unification ⓘ |
| positionHeld |
Bishop of Rome
ⓘ
Pope ⓘ Sovereign of the Vatican City State ⓘ
surface form:
Sovereign of the Vatican City (later Holy See jurisdiction)
|
| predecessor | Pope Gregory XVI ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholic Church
|
| significantEvent |
definition of papal infallibility in 1870
ⓘ
end of the Papal States in 1870 ⓘ loss of Rome to the Kingdom of Italy in 1870 ⓘ opening of the First Vatican Council in 1869 ⓘ proclamation of the dogma of the Immaculate Conception in 1854 ⓘ |
| startTime | 1846-06-16 ⓘ |
| successor | Pope Leo XIII ⓘ |
| veneratedIn |
Roman Catholicism
ⓘ
surface form:
Catholic Church
|
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 Pius IX Description of subject: Pope Pius IX was the 19th-century head of the Catholic Church whose long pontificate saw the loss of the Papal States and the proclamation of papal infallibility.
Referenced by (75)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pius IX
Pastor aeternus – on the primacy and infallibility of the Roman Pontiff
→
approvedBy
→
Pope Pius IX
ⓘ
subject surface form:
Pastor aeternus
subject surface form:
Dei Filius
subject surface form:
Dogmatic Constitution on the Catholic Faith
subject surface form:
Giovanni Maria Mastai-Ferretti
this entity surface form:
Pius IX
this entity surface form:
Pius IX
this entity surface form:
Pius IX
subject surface form:
Giovanni Maria Mastai-Ferretti
subject surface form:
Gioacchino Pecci
this entity surface form:
Pius IX
subject surface form:
Giovanni Maria Mastai-Ferretti
subject surface form:
Giovanni Maria Mastai-Ferretti
this entity surface form:
Pius IX