Ptolemy II Philadelphus
E102006
Ptolemy II Philadelphus was a Hellenistic king of Egypt whose prosperous and culturally vibrant reign saw major expansion of the Library of Alexandria and the consolidation of Ptolemaic power in the eastern Mediterranean.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ptolemy II Philadelphus canonical | 30 |
| Ptolemy Philadelphus | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T831615 — 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: Ptolemy II Philadelphus Context triple: [Ptolemaic Kingdom, notableRuler, Ptolemy II Philadelphus]
-
A.
Ptolemy I Soter
Ptolemy I Soter was a Macedonian general under Alexander the Great who became ruler of Egypt and established the Ptolemaic dynasty.
-
B.
Cyrus of Alexandria
Cyrus of Alexandria was a 7th-century patriarch and theologian known for promoting the Monothelite doctrine later rejected as heretical by the church.
-
C.
Pi-Ramesses
Pi-Ramesses was a major royal city in the Nile Delta that served as the principal residence and power center of Ramesses II during Egypt’s New Kingdom.
-
D.
Thutmose III
Thutmose III was a powerful 18th Dynasty pharaoh of ancient Egypt, often called the "Napoleon of Egypt" for his extensive military campaigns and empire-building.
-
E.
Pepi I Meryre
Pepi I Meryre was a prominent Sixth Dynasty pharaoh of Egypt’s Old Kingdom, known for extensive building projects, administrative reforms, and the expansion of Egyptian influence through trade and military campaigns.
- 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: Ptolemy II Philadelphus Target entity description: Ptolemy II Philadelphus was a Hellenistic king of Egypt whose prosperous and culturally vibrant reign saw major expansion of the Library of Alexandria and the consolidation of Ptolemaic power in the eastern Mediterranean.
-
A.
Ptolemy I Soter
Ptolemy I Soter was a Macedonian general under Alexander the Great who became ruler of Egypt and established the Ptolemaic dynasty.
-
B.
Cyrus of Alexandria
Cyrus of Alexandria was a 7th-century patriarch and theologian known for promoting the Monothelite doctrine later rejected as heretical by the church.
-
C.
Pi-Ramesses
Pi-Ramesses was a major royal city in the Nile Delta that served as the principal residence and power center of Ramesses II during Egypt’s New Kingdom.
-
D.
Thutmose III
Thutmose III was a powerful 18th Dynasty pharaoh of ancient Egypt, often called the "Napoleon of Egypt" for his extensive military campaigns and empire-building.
-
E.
Pepi I Meryre
Pepi I Meryre was a prominent Sixth Dynasty pharaoh of Egypt’s Old Kingdom, known for extensive building projects, administrative reforms, and the expansion of Egyptian influence through trade and military campaigns.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Hellenistic ruler
ⓘ
Ptolemaic monarch ⓘ king of Egypt ⓘ |
| alliedWith |
Greek city-states in the Aegean
ⓘ
Seleucid Empire ⓘ
surface form:
Seleucid Empire (at times)
|
| birthDate | c. 308 BC ⓘ |
| birthPlace | Kos ⓘ |
| burialPlace | likely Alexandria ⓘ |
| capital |
Alexandria, Egypt
ⓘ
surface form:
Alexandria
|
| child |
Berenice
ⓘ
surface form:
Berenice Syra
Lysimachus (son of Ptolemy II) ⓘ Ptolemy III Euergetes ⓘ |
| commissioned | translation of the Hebrew Bible into Greek (Septuagint) (traditional attribution) ⓘ |
| cultTitle | Theoi Adelphoi (with Arsinoe II) ⓘ |
| deathDate | 246 BC ⓘ |
| deathPlace |
Alexandria, Egypt
ⓘ
surface form:
Alexandria
|
| dynasty |
Ptolemaic Kingdom
ⓘ
surface form:
Ptolemaic dynasty
|
| engagedIn |
First Syrian War
ⓘ
Second Syrian War ⓘ |
| epithet |
Cercis
ⓘ
surface form:
Philadelphus
|
| epithetMeaning | sibling-loving ⓘ |
| expanded | Library of Alexandria ⓘ |
| father | Ptolemy I Soter ⓘ |
| foreignPolicyGoal | control of the eastern Mediterranean ⓘ |
| fullName | Ptolemy II Philadelphus self-link ⓘ |
| introduced | dynastic ruler cult in Egypt ⓘ |
| issued | gold and silver coinage with his image ⓘ |
| knownFor |
expansion of the Library of Alexandria
ⓘ
lavish court and festivals ⓘ patronage of arts and sciences ⓘ promoting Greek culture in Egypt ⓘ strengthening Ptolemaic naval power ⓘ |
| languageOfCourt | Greek ⓘ |
| maintained |
large mercenary army
ⓘ
powerful fleet ⓘ |
| mother | Berenice I of Egypt ⓘ |
| patronOf | Museum of Alexandria ⓘ |
| predecessor | Ptolemy I Soter ⓘ |
| promoted | maritime trade ⓘ |
| regnalName | Ptolemaios Philadelphos ⓘ |
| reignedOver |
Ptolemaic Kingdom
ⓘ
surface form:
Ptolemaic Kingdom of Egypt
|
| reignEnd | 246 BC ⓘ |
| reignStart | 283 BC ⓘ |
| religion | Ancient Greek religion ⓘ |
| siblingMarriage | Arsinoe II ⓘ |
| spouse |
Arsinoe I
ⓘ
Arsinoe II ⓘ |
| styleOfRule | Hellenistic monarchy with pharaonic elements ⓘ |
| successor | Ptolemy III Euergetes ⓘ |
| supported | League of the Islanders ⓘ |
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: Ptolemy II Philadelphus Description of subject: Ptolemy II Philadelphus was a Hellenistic king of Egypt whose prosperous and culturally vibrant reign saw major expansion of the Library of Alexandria and the consolidation of Ptolemaic power in the eastern Mediterranean.
Referenced by (33)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ptolemy Philadelphus
this entity surface form:
Ptolemy Philadelphus
this entity surface form:
Ptolemy Philadelphus
subject surface form:
Letter of Aristeas
subject surface form:
Mouseion of Alexandria
subject surface form:
Philadelphia (ancient Amman)