Duke of Masovia
E1019891
The Duke of Masovia was a medieval Polish noble title held by rulers of the Masovian region, an important principality within the fragmented Kingdom of Poland.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Duke of Masovia canonical | 4 |
| Dukes of Masovia | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12863287 — 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: Duke of Masovia Context triple: [Casimir I the Restorer, positionHeld, Duke of Masovia]
-
A.
Duke of Greater Poland
The Duke of Greater Poland was a medieval Polish ruler who governed the historic region of Greater Poland, a core area around Poznań that played a central role in the early Polish state.
-
B.
Duke of Kuyavia
The Duke of Kuyavia was a medieval Polish noble title held by members of the Piast dynasty who ruled the historical region of Kuyavia.
-
C.
Duke of Sandomierz
The Duke of Sandomierz was a medieval Polish princely title associated with the fragmented Piast-ruled duchy centered on the city of Sandomierz.
-
D.
Duke of Opole
The Duke of Opole was a noble title associated with the historic Silesian duchy centered on the city of Opole, often held by prominent European aristocrats.
-
E.
Duke of Inowrocław
The Duke of Inowrocław was a medieval Polish princely title held by members of the Kuyavian branch of the Piast dynasty who ruled the Inowrocław region.
- 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: Duke of Masovia Target entity description: The Duke of Masovia was a medieval Polish noble title held by rulers of the Masovian region, an important principality within the fragmented Kingdom of Poland.
-
A.
Duke of Greater Poland
The Duke of Greater Poland was a medieval Polish ruler who governed the historic region of Greater Poland, a core area around Poznań that played a central role in the early Polish state.
-
B.
Duke of Kuyavia
The Duke of Kuyavia was a medieval Polish noble title held by members of the Piast dynasty who ruled the historical region of Kuyavia.
-
C.
Duke of Sandomierz
The Duke of Sandomierz was a medieval Polish princely title associated with the fragmented Piast-ruled duchy centered on the city of Sandomierz.
-
D.
Duke of Opole
The Duke of Opole was a noble title associated with the historic Silesian duchy centered on the city of Opole, often held by prominent European aristocrats.
-
E.
Duke of Inowrocław
The Duke of Inowrocław was a medieval Polish princely title held by members of the Kuyavian branch of the Piast dynasty who ruled the Inowrocław region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
hereditary title
ⓘ
noble title ⓘ |
| appliesToJurisdiction |
Duchy of Masovia
NERFINISHED
ⓘ
Masovia NERFINISHED ⓘ |
| associatedWithCapital |
Płock
NERFINISHED
ⓘ
Warsaw NERFINISHED ⓘ |
| associatedWithEvent | Christianization of Prussia (via Conrad I) ⓘ |
| associatedWithNeighboringEntity |
Duchy of Czersk
GENERATED
ⓘ
Duchy of Płock GENERATED ⓘ Kingdom of Poland GENERATED ⓘ Teutonic Order GENERATED ⓘ |
| associatedWithReligion | Roman Catholicism NERFINISHED ⓘ |
| continent | Europe ⓘ |
| country | Kingdom of Poland NERFINISHED ⓘ |
| dynastyAssociatedWith | Piast dynasty NERFINISHED ⓘ |
| feudalRank | princeps ⓘ |
| genderOfTypicalHolder | male ⓘ |
| governmentForm | feudal monarchy ⓘ |
| hasNotableTitleHolder |
Bolesław II of Masovia
NERFINISHED
ⓘ
Conrad I of Masovia NERFINISHED ⓘ Janusz I of Warsaw NERFINISHED ⓘ Siemowit III of Masovia NERFINISHED ⓘ Siemowit IV of Masovia NERFINISHED ⓘ |
| historicalRegion | Masovia NERFINISHED ⓘ |
| historicalSignificance | important principality within fragmented Poland ⓘ |
| languageOfTitle |
Latin
ⓘ
Polish ⓘ |
| locatedInPresentDay | Poland NERFINISHED ⓘ |
| nobleRank | duke ⓘ |
| partOf | Piast-ruled Poland NERFINISHED ⓘ |
| partOfHistoricalProcess | fragmentation of Poland ⓘ |
| politicalStatus |
semi-independent ruler
ⓘ
vassal of the Polish Crown ⓘ |
| positionHeldBy | Masovian Piast dynasty NERFINISHED ⓘ |
| regionType | medieval principality ⓘ |
| saidToBeTheSameAs | Duke of Mazovia NERFINISHED ⓘ |
| socialClass | high nobility ⓘ |
| subordinateTo | King of Poland NERFINISHED ⓘ |
| successionType | hereditary succession ⓘ |
| territoryIncluded |
Czersk land
NERFINISHED
ⓘ
Płock land NERFINISHED ⓘ Warsaw land NERFINISHED ⓘ |
| titleAbolishedBy | incorporation of Masovia into the Polish Crown ⓘ |
| titleCreatedInContextOf | feudal fragmentation of the Kingdom of Poland ⓘ |
| titleHolderRole |
Polish prince
ⓘ
ruler of Masovia ⓘ |
| usedInPeriod |
High Middle Ages
NERFINISHED
ⓘ
Late Middle Ages ⓘ |
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: Duke of Masovia Description of subject: The Duke of Masovia was a medieval Polish noble title held by rulers of the Masovian region, an important principality within the fragmented Kingdom of Poland.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Dukes of Masovia