Ahmad ibn Ja'far
E851070
Ahmad ibn Ja'far, better known by his regnal title al-Mu'tamid, was an Abbasid caliph who ruled from 870 to 892 CE during a period of significant political fragmentation of the caliphate.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Abu’l-‘Abbas Ahmad ibn Ja‘far | 1 |
| Ahmad ibn Ja'far canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10204832 — 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: Ahmad ibn Ja'far Context triple: [al-Mu'tamid, personalName, Ahmad ibn Ja'far]
-
A.
Muhammad ibn Jaʿfar
Muhammad ibn Jaʿfar was a son of the Rashidun caliph Ali ibn Abi Talib and a member of the early Islamic Prophet’s family (Ahl al-Bayt).
-
B.
Ja'far ibn Yahya
Ja'far ibn Yahya was a historical Abbasid vizier who appears as a wise and prominent character in several tales of the One Thousand and One Nights.
-
C.
Jaʿfar
Jaʿfar is a prominent Arabic male given name of Islamic origin, historically associated with notable early Muslim figures.
-
D.
Abū’l-Faḍl
Abū’l-Faḍl is the honorific kunya of Ibn ‘Ata’ Allah al-Iskandari, the influential 13th–14th century Egyptian Maliki jurist and Shadhili Sufi master known for his spiritual writings.
-
E.
Abdullah ibn Ja‘far
Abdullah ibn Ja‘far was a prominent early Muslim figure, known as a companion and relative of the Prophet Muhammad, noted for his generosity and his marriage to Zaynab bint Ali.
- 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: Ahmad ibn Ja'far Target entity description: Ahmad ibn Ja'far, better known by his regnal title al-Mu'tamid, was an Abbasid caliph who ruled from 870 to 892 CE during a period of significant political fragmentation of the caliphate.
-
A.
Muhammad ibn Jaʿfar
Muhammad ibn Jaʿfar was a son of the Rashidun caliph Ali ibn Abi Talib and a member of the early Islamic Prophet’s family (Ahl al-Bayt).
-
B.
Ja'far ibn Yahya
Ja'far ibn Yahya was a historical Abbasid vizier who appears as a wise and prominent character in several tales of the One Thousand and One Nights.
-
C.
Jaʿfar
Jaʿfar is a prominent Arabic male given name of Islamic origin, historically associated with notable early Muslim figures.
-
D.
Abū’l-Faḍl
Abū’l-Faḍl is the honorific kunya of Ibn ‘Ata’ Allah al-Iskandari, the influential 13th–14th century Egyptian Maliki jurist and Shadhili Sufi master known for his spiritual writings.
-
E.
Abdullah ibn Ja‘far
Abdullah ibn Ja‘far was a prominent early Muslim figure, known as a companion and relative of the Prophet Muhammad, noted for his generosity and his marriage to Zaynab bint Ali.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Abbasid caliph
ⓘ
Muslim ruler ⓘ historical figure ⓘ |
| associatedWith | Abbasid Caliphate ⓘ |
| birthPlace | Samarra ⓘ |
| burialPlace | Baghdad ⓘ |
| caliphNumber | 15th Abbasid caliph ⓘ |
| capitalDuringReign |
Baghdad
ⓘ
Samarra ⓘ |
| chronologicalContext | 9th century ⓘ |
| co-ruledWith | al-Muwaffaq ⓘ |
| conflictDuringReign |
Zanj Rebellion
ⓘ
ongoing Byzantine–Abbasid frontier warfare ⓘ |
| controlledBy | influential court regents and military leaders ⓘ |
| deathDateApproximate | 892 ⓘ |
| deathPlace | Baghdad ⓘ |
| dynasty |
Abbasid dynasty
ⓘ
linked to:
Abbasid Caliphate
|
| era | Islamic Golden Age ⓘ |
| father | al-Mutawakkil ⓘ |
| fullName | Ahmad ibn Ja'far ⓘ |
| governmentType | Caliphate ⓘ |
| historicalReputation | weak political authority compared to powerful regents ⓘ |
| house | House of Abbas ⓘ |
| knownFor | being largely overshadowed by his brother and regent al-Muwaffaq ⓘ |
| language | Arabic ⓘ |
| notableAspect | nominal authority contrasted with strong regional autonomy ⓘ |
| notableEvent |
period of strong influence of Turkish military commanders at court
ⓘ
ruled during political fragmentation of the Abbasid Caliphate ⓘ saw de facto autonomy of provincial dynasties such as the Tulunids in Egypt ⓘ |
| positionHeld |
Caliph of the Abbasid Caliphate
ⓘ
linked to:
Caliph
|
| predecessor | al-Muhtadi ⓘ |
| realm | Abbasid Caliphate ⓘ |
| regnalName | al-Mu'tamid ⓘ |
| reignEnd | 892 ⓘ |
| reignStart | 870 ⓘ |
| religion | Islam ⓘ |
| sovereignOf | Abbasid Caliphate ⓘ |
| sovereignType | Caliph ⓘ |
| style |
Caliph al-Mu'tamid 'ala Allah
ⓘ
linked to:
Caliph al-Mu'tamid
|
| successor | al-Mu'tadid ⓘ |
| successorStateInEgypt | Tulunid dynasty ⓘ |
| successorStateInNorthAfrica | Aghlabid dynasty ⓘ |
| territorialControl |
Iraq
ⓘ
parts of the central Abbasid domains ⓘ |
| title |
Amir al-Mu'minin
ⓘ
linked to:
Amir al-Mu’minin
|
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: Ahmad ibn Ja'far Description of subject: Ahmad ibn Ja'far, better known by his regnal title al-Mu'tamid, was an Abbasid caliph who ruled from 870 to 892 CE during a period of significant political fragmentation of the caliphate.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Caliph al-Mu'tamid
linked to: Ahmad ibn Ja'far