Demetrius I of Bactria
E430934
Demetrius I of Bactria was a 2nd-century BCE Greco-Bactrian king renowned for his expansion into the Indian subcontinent and for founding one of the earliest and most significant Indo-Greek realms.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Demetrius I of Bactria canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4271200 — 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: Demetrius I of Bactria Context triple: [Indo-Greek Kingdoms, notableRuler, Demetrius I of Bactria]
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A.
Euthydemus I
Euthydemus I was a prominent Hellenistic king who ruled the Greco-Bactrian Kingdom in the 3rd century BCE and successfully defended it against Seleucid attempts at reconquest.
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B.
Eucratides I
Eucratides I was a powerful 2nd-century BCE Greco-Bactrian king known for his extensive military campaigns and for significantly expanding and consolidating Hellenistic rule in Central Asia.
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C.
Euthydemus
Euthydemus is a Socratic dialogue by Plato that satirically examines sophistry and the nature of wisdom through conversations between Socrates and two eristic brothers.
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D.
Seleucus I Nicator
Seleucus I Nicator was a Macedonian general under Alexander the Great who became the founder of the Seleucid Empire and one of the major Hellenistic rulers.
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E.
Hystaspes
Hystaspes was a Persian nobleman of the Achaemenid dynasty, best known as the father of King Darius I of Persia.
- 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: Demetrius I of Bactria Target entity description: Demetrius I of Bactria was a 2nd-century BCE Greco-Bactrian king renowned for his expansion into the Indian subcontinent and for founding one of the earliest and most significant Indo-Greek realms.
-
A.
Euthydemus I
Euthydemus I was a prominent Hellenistic king who ruled the Greco-Bactrian Kingdom in the 3rd century BCE and successfully defended it against Seleucid attempts at reconquest.
-
B.
Eucratides I
Eucratides I was a powerful 2nd-century BCE Greco-Bactrian king known for his extensive military campaigns and for significantly expanding and consolidating Hellenistic rule in Central Asia.
-
C.
Euthydemus
Euthydemus is a Socratic dialogue by Plato that satirically examines sophistry and the nature of wisdom through conversations between Socrates and two eristic brothers.
-
D.
Seleucus I Nicator
Seleucus I Nicator was a Macedonian general under Alexander the Great who became the founder of the Seleucid Empire and one of the major Hellenistic rulers.
-
E.
Hystaspes
Hystaspes was a Persian nobleman of the Achaemenid dynasty, best known as the father of King Darius I of Persia.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Greco-Bactrian king
ⓘ
Hellenistic ruler ⓘ Indo-Greek king ⓘ |
| capital | Bactra NERFINISHED ⓘ |
| coinageType |
bronze coin
ⓘ
silver tetradrachm ⓘ |
| coinDepiction |
Heracles
NERFINISHED
ⓘ
elephant-scalp headdress ⓘ |
| conflict | Seleucid Empire NERFINISHED ⓘ |
| contemporaryOf |
Antiochus III the Great
NERFINISHED
ⓘ
Antiochus IV Epiphanes NERFINISHED ⓘ |
| country | Greco-Bactrian Kingdom NERFINISHED ⓘ |
| culture | Hellenistic Greek ⓘ |
| dateOfBirth | 3rd century BCE ⓘ |
| dateOfDeath | 2nd century BCE ⓘ |
| era | Hellenistic period ⓘ |
| expandedTo |
Arachosia
NERFINISHED
ⓘ
Gandhara NERFINISHED ⓘ northwestern Indian subcontinent ⓘ |
| familyName | Euthydemid dynasty NERFINISHED ⓘ |
| father | Euthydemus I of Bactria NERFINISHED ⓘ |
| floruit | early 2nd century BCE ⓘ |
| historicalRegion |
Bactria
NERFINISHED
ⓘ
Indo-Greek Kingdom NERFINISHED ⓘ |
| knownFrom |
classical literary sources
ⓘ
numismatic evidence ⓘ |
| legacy |
creation of a lasting Greco-Indian cultural synthesis
ⓘ
foundation of one of the earliest Indo-Greek realms ⓘ |
| notableFor |
coinage depicting elephant headdress
ⓘ
establishing Greco-Indian political presence ⓘ expansion into the Indian subcontinent ⓘ founding an early Indo-Greek realm ⓘ military campaigns in northwestern India ⓘ use of bilingual coin legends in Greek and local languages ⓘ |
| occupation | king ⓘ |
| partOf | Euthydemid dynasty NERFINISHED ⓘ |
| positionHeld |
King of Bactria
NERFINISHED
ⓘ
King of the Indo-Greek Kingdom NERFINISHED ⓘ |
| predecessor | Euthydemus I of Bactria NERFINISHED ⓘ |
| reign | c. 200 BCE – c. 180 BCE ⓘ |
| religion | Hellenistic Greek religion ⓘ |
| successor |
Agathocles of Bactria
NERFINISHED
ⓘ
Antimachus I NERFINISHED ⓘ Pantaleon of Bactria NERFINISHED ⓘ |
| title |
Basileus Demetrios
NERFINISHED
ⓘ
King Demetrius NERFINISHED ⓘ |
| usedLanguage | Ancient Greek ⓘ |
| usedScript | Greek alphabet ⓘ |
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: Demetrius I of Bactria Description of subject: Demetrius I of Bactria was a 2nd-century BCE Greco-Bactrian king renowned for his expansion into the Indian subcontinent and for founding one of the earliest and most significant Indo-Greek realms.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.