Ludwig IV. (Ostfranken)
E929574
Ludwig IV. (Ostfranken), better known as Louis the Child, was the last East Frankish Carolingian king, ruling from 899 to 911 during a period of internal fragmentation and external Magyar threats.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ludwig IV. (Ostfranken) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11417651 — 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: Ludwig IV. (Ostfranken) Context triple: [Louis the Child, alsoKnownAs, Ludwig IV. (Ostfranken)]
-
A.
Louis the German
Louis the German was a 9th-century East Frankish king and grandson of Charlemagne who played a key role in the fragmentation of the Carolingian Empire and the formation of what would become Germany.
-
B.
Conrad II of Bavaria
Conrad II of Bavaria was an 11th-century German prince of the Salian dynasty who briefly held the Duchy of Bavaria as the son of Holy Roman Emperor Henry III.
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C.
Ludwig der Deutsche
Ludwig der Deutsche was a 9th-century East Frankish king and grandson of Charlemagne who played a key role in the formation of the German kingdom.
-
D.
Lothar I
Lothar I was a 9th-century Carolingian emperor and king whose reign and subsequent partition of his realm helped shape the political landscape of medieval Western and Central Europe.
-
E.
Lothair III, Holy Roman Emperor
Lothair III was a 12th-century German king and Holy Roman Emperor known for his election after the Salian dynasty, his conflicts with the Hohenstaufen, and his efforts to balance imperial authority with papal power.
- 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: Ludwig IV. (Ostfranken) Target entity description: Ludwig IV. (Ostfranken), better known as Louis the Child, was the last East Frankish Carolingian king, ruling from 899 to 911 during a period of internal fragmentation and external Magyar threats.
-
A.
Louis the German
Louis the German was a 9th-century East Frankish king and grandson of Charlemagne who played a key role in the fragmentation of the Carolingian Empire and the formation of what would become Germany.
-
B.
Conrad II of Bavaria
Conrad II of Bavaria was an 11th-century German prince of the Salian dynasty who briefly held the Duchy of Bavaria as the son of Holy Roman Emperor Henry III.
-
C.
Ludwig der Deutsche
Ludwig der Deutsche was a 9th-century East Frankish king and grandson of Charlemagne who played a key role in the formation of the German kingdom.
-
D.
Lothar I
Lothar I was a 9th-century Carolingian emperor and king whose reign and subsequent partition of his realm helped shape the political landscape of medieval Western and Central Europe.
-
E.
Lothair III, Holy Roman Emperor
Lothair III was a 12th-century German king and Holy Roman Emperor known for his election after the Salian dynasty, his conflicts with the Hohenstaufen, and his efforts to balance imperial authority with papal power.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Carolingian monarch
ⓘ
East Frankish king ⓘ human ⓘ medieval ruler ⓘ |
| ageAtAccession | about 6 ⓘ |
| alsoKnownAs |
Louis IV of East Francia
NERFINISHED
ⓘ
Louis the Child NERFINISHED ⓘ Ludwig das Kind NERFINISHED ⓘ |
| birthDate | 0893-09-00 ⓘ |
| birthPlace | Altötting NERFINISHED ⓘ |
| burialPlace | Regensburg NERFINISHED ⓘ |
| causeOfDeath | illness ⓘ |
| chronologicalOrder | last East Frankish Carolingian king ⓘ |
| coronationDate | 0899-02-22 ⓘ |
| coronationPlace | Forchheim NERFINISHED ⓘ |
| country | East Francia NERFINISHED ⓘ |
| deathDate | 0911-09-24 ⓘ |
| deathPlace | Frankfurt am Main NERFINISHED ⓘ |
| era | Early Middle Ages ⓘ |
| father | Arnulf of Carinthia NERFINISHED ⓘ |
| gender | male ⓘ |
| hasNoIssue | true ⓘ |
| historicalRegion | East Francia NERFINISHED ⓘ |
| lastRulerOf | Carolingian dynasty in East Francia NERFINISHED ⓘ |
| memberOfDynasty | Carolingian dynasty NERFINISHED ⓘ |
| mother | Ota NERFINISHED ⓘ |
| nativeLanguage | Old High German ⓘ |
| notableFor | being the last East Frankish Carolingian king ⓘ |
| positionHeld |
King of East Francia
ⓘ
King of the East Franks NERFINISHED ⓘ |
| predecessor | Arnulf of Carinthia NERFINISHED ⓘ |
| realmIncluded |
Bavaria
NERFINISHED
ⓘ
Franconia NERFINISHED ⓘ Saxony NERFINISHED ⓘ Swabia NERFINISHED ⓘ |
| regnalName | Ludwig IV. (Ostfranken) NERFINISHED ⓘ |
| reignCharacterizedBy |
external Magyar threats
ⓘ
internal political fragmentation ⓘ |
| reignEnd | 0911-09-24 ⓘ |
| reignStart | 0899-02-22 ⓘ |
| religion | Christianity ⓘ |
| ruledOver | East Francia NERFINISHED ⓘ |
| succeededBy | Conrad I of Germany NERFINISHED ⓘ |
| successor | Conrad I of East Francia NERFINISHED ⓘ |
| title | rex Francorum orientalium ⓘ |
| usedLanguageInDiplomas | Latin ⓘ |
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: Ludwig IV. (Ostfranken) Description of subject: Ludwig IV. (Ostfranken), better known as Louis the Child, was the last East Frankish Carolingian king, ruling from 899 to 911 during a period of internal fragmentation and external Magyar threats.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.