Ludwig IV, Landgrave of Thuringia

E953223 UNEXPLORED

Ludwig IV, Landgrave of Thuringia, was a 13th-century German prince best known as the husband of Saint Elizabeth of Hungary and a prominent ruler of the Thuringian landgraviate.

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All labels observed (2)

Label	Occurrences
Louis IV, Landgrave of Thuringia	7
Ludwig IV, Landgrave of Thuringia canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T11866022 — 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, Landgrave of Thuringia
Context triple: [Elisabethkemenate, associatedPerson, Ludwig IV, Landgrave of Thuringia]

A. Louis IV, Landgrave of Hesse-Marburg
Louis IV, Landgrave of Hesse-Marburg, was a 16th-century German prince of the House of Hesse who ruled the small Landgraviate of Hesse-Marburg during the time of the Reformation.
B. Bernhard III, Duke of Saxony
Bernhard III, Duke of Saxony, was a 13th-century German prince of the Ascanian dynasty who ruled parts of Saxony during the fragmentation of the medieval duchy.
C. Ernst Heinrich of Saxony
Ernst Heinrich of Saxony was a German prince of the House of Wettin and one of the last members of the Saxon royal family to live through the fall of the monarchy and both World Wars.
D. Henry Raspe, Landgrave of Thuringia
Henry Raspe, Landgrave of Thuringia, was a 13th-century German prince who briefly reigned as anti-king of Germany in opposition to the Hohenstaufen dynasty.
E. William II, Margrave of Meissen
William II, Margrave of Meissen, was a late 14th- and early 15th-century German nobleman of the House of Wettin who played a significant role in regional politics and patronage in central Germany.
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, Landgrave of Thuringia
Target entity description: Ludwig IV, Landgrave of Thuringia, was a 13th-century German prince best known as the husband of Saint Elizabeth of Hungary and a prominent ruler of the Thuringian landgraviate.

A. Louis IV, Landgrave of Hesse-Marburg
Louis IV, Landgrave of Hesse-Marburg, was a 16th-century German prince of the House of Hesse who ruled the small Landgraviate of Hesse-Marburg during the time of the Reformation.
B. Bernhard III, Duke of Saxony
Bernhard III, Duke of Saxony, was a 13th-century German prince of the Ascanian dynasty who ruled parts of Saxony during the fragmentation of the medieval duchy.
C. Ernst Heinrich of Saxony
Ernst Heinrich of Saxony was a German prince of the House of Wettin and one of the last members of the Saxon royal family to live through the fall of the monarchy and both World Wars.
D. Henry Raspe, Landgrave of Thuringia
Henry Raspe, Landgrave of Thuringia, was a 13th-century German prince who briefly reigned as anti-king of Germany in opposition to the Hohenstaufen dynasty.
E. William II, Margrave of Meissen
William II, Margrave of Meissen, was a late 14th- and early 15th-century German nobleman of the House of Wettin who played a significant role in regional politics and patronage in central Germany.
F. None of above. chosen