Treaty of Nymphaeum
E337664
The Treaty of Nymphaeum was a 1261 alliance between the Byzantine Empire and the Republic of Genoa that granted Genoa extensive commercial privileges and helped establish its dominance in Black Sea trade.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Treaty of Nymphaeum canonical | 1 |
| Treaty of Nymphaeum (1261) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3219499 — 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: Treaty of Nymphaeum Context triple: [Genoese colonies in Crimea, significantEvent, Treaty of Nymphaeum]
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A.
Treaty of 435
The Treaty of 435 was an agreement between the Western Roman Empire and the Vandal Kingdom that formally recognized Vandal control over parts of North Africa in exchange for peace and tribute.
-
B.
Treaty of Jaffa
The Treaty of Jaffa was a 1192 peace agreement between Richard the Lionheart and Saladin that ended the Third Crusade by confirming Muslim control of Jerusalem while allowing Christian pilgrims access to the city.
-
C.
Treaty of Mersen
The Treaty of Mersen was an 870 agreement that further divided the Carolingian Empire between the East and West Frankish kingdoms, shaping the political map of medieval Western Europe.
-
D.
Treaty of Kadesh
The Treaty of Kadesh is one of the earliest known recorded peace treaties in history, concluded around 1259 BCE between the Egyptian Empire under Ramesses II and the Hittite Empire to end their conflict over control of Syria.
-
E.
Treaty of Devol
The Treaty of Devol was a 1108 agreement between Bohemond I of Antioch and Byzantine Emperor Alexios I Komnenos that made the Principality of Antioch a vassal state of the Byzantine Empire.
- 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: Treaty of Nymphaeum Target entity description: The Treaty of Nymphaeum was a 1261 alliance between the Byzantine Empire and the Republic of Genoa that granted Genoa extensive commercial privileges and helped establish its dominance in Black Sea trade.
-
A.
Treaty of 435
The Treaty of 435 was an agreement between the Western Roman Empire and the Vandal Kingdom that formally recognized Vandal control over parts of North Africa in exchange for peace and tribute.
-
B.
Treaty of Jaffa
The Treaty of Jaffa was a 1192 peace agreement between Richard the Lionheart and Saladin that ended the Third Crusade by confirming Muslim control of Jerusalem while allowing Christian pilgrims access to the city.
-
C.
Treaty of Mersen
The Treaty of Mersen was an 870 agreement that further divided the Carolingian Empire between the East and West Frankish kingdoms, shaping the political map of medieval Western Europe.
-
D.
Treaty of Kadesh
The Treaty of Kadesh is one of the earliest known recorded peace treaties in history, concluded around 1259 BCE between the Egyptian Empire under Ramesses II and the Hittite Empire to end their conflict over control of Syria.
-
E.
Treaty of Devol
The Treaty of Devol was a 1108 agreement between Bohemond I of Antioch and Byzantine Emperor Alexios I Komnenos that made the Principality of Antioch a vassal state of the Byzantine Empire.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
alliance
ⓘ
treaty ⓘ |
| affectedRegion |
Aegean Sea
ⓘ
Black Sea ⓘ Eastern Mediterranean ⓘ |
| concludedBy |
Republic of Genoa
ⓘ
surface form:
Genoese Republic
Michael VIII Palaiologos ⓘ |
| granted |
customs concessions
ⓘ
extensive commercial privileges ⓘ quarter in Constantinople for Genoese merchants ⓘ tax exemptions ⓘ trading rights in the Byzantine Empire ⓘ warehouse rights ⓘ |
| grantedTo | Republic of Genoa ⓘ |
| hasConsequences |
establishment of Genoese colonies such as Caffa
ⓘ
increased Genoese influence in Constantinople ⓘ long-term Genoese presence in the Black Sea ⓘ |
| hasContext |
Latin occupation of Constantinople
ⓘ
rivalry between Genoa and Venice ⓘ |
| hasDate | 1261 ⓘ |
| hasLanguage |
Greek
ⓘ
Latin ⓘ |
| hasPlaceOfSigning |
Nymphaeum
ⓘ
Nymphaion ⓘ |
| hasPurpose |
military alliance against the Latin Empire
ⓘ
recovery of Constantinople ⓘ securing naval support for Michael VIII Palaiologos ⓘ |
| hasSignatory |
Byzantine Empire
ⓘ
Empire of Nicaea ⓘ Republic of Genoa ⓘ |
| historicalPeriod |
13th century
ⓘ
Late Byzantine period ⓘ |
| isPartOf |
Byzantine diplomacy
ⓘ
surface form:
Byzantine–Genoese relations
Byzantine–Latin conflicts ⓘ history of the Byzantine Empire ⓘ history of the Republic of Genoa ⓘ |
| locatedInPresentDay | Turkey ⓘ |
| negotiatedBy | Michael VIII Palaiologos ⓘ |
| precedes | reconquest of Constantinople in 1261 ⓘ |
| relatedTo |
Latin Empire
ⓘ
Republic of Venice ⓘ |
| resultedIn |
Genoese dominance in Black Sea trade
ⓘ
expansion of Genoese commercial network ⓘ weakening of Venetian commercial position in the region ⓘ |
| signedInYear | 1261 ⓘ |
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: Treaty of Nymphaeum Description of subject: The Treaty of Nymphaeum was a 1261 alliance between the Byzantine Empire and the Republic of Genoa that granted Genoa extensive commercial privileges and helped establish its dominance in Black Sea trade.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Treaty of Nymphaeum (1261)