Ptolemaios
E209462
Ptolemaios is the Latinized name of Claudius Ptolemaeus, the Greco-Roman mathematician, astronomer, and geographer whose works like the Almagest and Geographia shaped scientific thought for centuries.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ptolemaios canonical | 2 |
| Ptolemy | 1 |
| Κλαύδιος Πτολεμαῖος | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1807128 — 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: Ptolemaios Context triple: [Claudius Ptolemaeus, alsoKnownAs, Ptolemaios]
-
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.
Ptolemy II Philadelphus
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.
-
C.
Ptolemy V Epiphanes
Ptolemy V Epiphanes was a Hellenistic king of Egypt from the Ptolemaic dynasty, known for his tumultuous reign marked by internal revolts and foreign invasions, and for being commemorated on the Rosetta Stone.
-
D.
Ptolemy III Euergetes
Ptolemy III Euergetes was a powerful 3rd-century BCE Hellenistic king of Egypt whose reign marked the political and military peak of the Ptolemaic dynasty.
-
E.
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.
- 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: Ptolemaios Target entity description: Ptolemaios is the Latinized name of Claudius Ptolemaeus, the Greco-Roman mathematician, astronomer, and geographer whose works like the Almagest and Geographia shaped scientific thought for centuries.
-
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.
Ptolemy II Philadelphus
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.
-
C.
Ptolemy V Epiphanes
Ptolemy V Epiphanes was a Hellenistic king of Egypt from the Ptolemaic dynasty, known for his tumultuous reign marked by internal revolts and foreign invasions, and for being commemorated on the Rosetta Stone.
-
D.
Ptolemy III Euergetes
Ptolemy III Euergetes was a powerful 3rd-century BCE Hellenistic king of Egypt whose reign marked the political and military peak of the Ptolemaic dynasty.
-
E.
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.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
Greco-Roman scholar
ⓘ
astrologer ⓘ astronomer ⓘ geographer ⓘ human ⓘ mathematician ⓘ |
| approximateBirthYear | c. 100 ⓘ |
| approximateDeathYear | c. 170 ⓘ |
| astronomicalModel | geocentric cosmos with epicycles and deferents ⓘ |
| authored |
Almagest
ⓘ
Geographia ⓘ Harmonics ⓘ Optics ⓘ Tetrabiblos ⓘ |
| citizenship | Roman Empire ⓘ |
| culture | Greco-Roman ⓘ |
| era | Roman Empire ⓘ |
| ethnicGroup | Greek ⓘ |
| fieldOfWork |
astronomy
ⓘ
geography ⓘ mathematics ⓘ music theory ⓘ optics ⓘ |
| floruit |
2nd century
ⓘ
2nd century CE ⓘ |
| fullName | Claudius Ptolemaeus ⓘ |
| geographiaContent | coordinate-based world map system ⓘ |
| influenced |
Renaissance astronomy
ⓘ
history of cartography ⓘ medieval European astronomy ⓘ medieval Islamic astronomy ⓘ |
| knownFor |
Ptolemaic system
ⓘ
geocentric model of the universe ⓘ influential star catalog ⓘ systematic geography of the known world ⓘ |
| latinizedNameOf | Claudius Ptolemaeus ⓘ |
| name | Ptolemaios self-link ⓘ |
| nativeLanguage | Greek ⓘ |
| notableWork |
Almagest
ⓘ
Geographia ⓘ Harmonics ⓘ Optics ⓘ Tetrabiblos ⓘ |
| occupation |
astrologer
ⓘ
astronomer ⓘ geographer ⓘ mathematician ⓘ |
| placeOfResidence | Alexandria ⓘ |
| starCatalogSize | over 1,000 stars ⓘ |
| tetrabiblosSubject | astrology and its theoretical foundations ⓘ |
| workLocation |
Alexandria
ⓘ
Egypt ⓘ |
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: Ptolemaios Description of subject: Ptolemaios is the Latinized name of Claudius Ptolemaeus, the Greco-Roman mathematician, astronomer, and geographer whose works like the Almagest and Geographia shaped scientific thought for centuries.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Κλαύδιος Πτολεμαῖος