Bretislaus I
E629965
Bretislaus I was an 11th-century Duke of Bohemia known for consolidating Přemyslid power, expanding Bohemian territory, and strengthening the region’s political and ecclesiastical independence within the Holy Roman Empire.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bretislaus I canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6859019 — 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: Bretislaus I Context triple: [Přemyslid dynasty, notableRuler, Bretislaus I]
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A.
Boleslaus II the Pious
Boleslaus II the Pious was a 10th-century Duke of Bohemia known for consolidating Přemyslid rule and strengthening the Christian church in his realm.
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B.
Bořivoj I, Duke of Bohemia
Bořivoj I, Duke of Bohemia, was the first historically documented ruler of Bohemia and an early promoter of Christianity in the region during the late 9th century.
-
C.
Vseslav of Polotsk
Vseslav of Polotsk was an 11th-century prince of Polotsk and briefly Grand Prince of Kiev, remembered both as a powerful regional ruler and as a semi-legendary, sorcerer-like figure in East Slavic folklore and the epic "The Tale of Igor's Campaign."
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D.
Bolesław
Bolesław is a masculine Slavic given name, particularly common in Poland, historically borne by several notable rulers and political figures.
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E.
Boleslaus I the Cruel
Boleslaus I the Cruel was a 10th-century Duke of Bohemia known for consolidating and expanding Přemyslid power, including through the notorious murder of his brother Saint Wenceslaus.
- 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: Bretislaus I Target entity description: Bretislaus I was an 11th-century Duke of Bohemia known for consolidating Přemyslid power, expanding Bohemian territory, and strengthening the region’s political and ecclesiastical independence within the Holy Roman Empire.
-
A.
Boleslaus II the Pious
Boleslaus II the Pious was a 10th-century Duke of Bohemia known for consolidating Přemyslid rule and strengthening the Christian church in his realm.
-
B.
Bořivoj I, Duke of Bohemia
Bořivoj I, Duke of Bohemia, was the first historically documented ruler of Bohemia and an early promoter of Christianity in the region during the late 9th century.
-
C.
Vseslav of Polotsk
Vseslav of Polotsk was an 11th-century prince of Polotsk and briefly Grand Prince of Kiev, remembered both as a powerful regional ruler and as a semi-legendary, sorcerer-like figure in East Slavic folklore and the epic "The Tale of Igor's Campaign."
-
D.
Bolesław
Bolesław is a masculine Slavic given name, particularly common in Poland, historically borne by several notable rulers and political figures.
-
E.
Boleslaus I the Cruel
Boleslaus I the Cruel was a 10th-century Duke of Bohemia known for consolidating and expanding Přemyslid power, including through the notorious murder of his brother Saint Wenceslaus.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Duke of Bohemia
ⓘ
medieval ruler ⓘ member of the Přemyslid dynasty ⓘ |
| aim | to secure greater autonomy for Bohemia within the Holy Roman Empire ⓘ |
| alsoKnownAs |
Bretislav I
NERFINISHED
ⓘ
Břetislav I NERFINISHED ⓘ |
| associatedWith | Holy Roman Empire NERFINISHED ⓘ |
| burialPlace | Basilica of St. Peter and St. Paul at Vyšehrad (traditional attribution) NERFINISHED ⓘ |
| child |
Conrad I of Brno
NERFINISHED
ⓘ
Jaromír, Bishop of Prague NERFINISHED ⓘ Otto I of Olomouc NERFINISHED ⓘ Spytihněv II NERFINISHED ⓘ Vratislaus II NERFINISHED ⓘ |
| conflict |
campaigns in Moravia
ⓘ
wars against Poland ⓘ |
| country | Duchy of Bohemia NERFINISHED ⓘ |
| dateOfBirth | circa 1002 ⓘ |
| dateOfDeath | 10 January 1055 ⓘ |
| era | 11th century ⓘ |
| father | Oldřich, Duke of Bohemia NERFINISHED ⓘ |
| mother | Božena NERFINISHED ⓘ |
| nobleFamily | Přemyslid dynasty NERFINISHED ⓘ |
| notableFor |
consolidation of Přemyslid power in Bohemia
ⓘ
expansion of Bohemian territory ⓘ invasion of Poland in 1038 ⓘ seizure of Gniezno ⓘ strengthening Bohemian political independence within the Holy Roman Empire ⓘ strengthening ecclesiastical independence of Bohemia ⓘ transfer of the relics of Saint Adalbert to Prague ⓘ |
| placeOfDeath | Chrudim NERFINISHED ⓘ |
| policy |
centralization of ducal authority
ⓘ
integration of Moravia under Bohemian control ⓘ support for the development of the Prague bishopric ⓘ |
| positionHeld | Duke of Bohemia NERFINISHED ⓘ |
| predecessor | Oldřich, Duke of Bohemia NERFINISHED ⓘ |
| reignEnd | 1055 ⓘ |
| reignStart | 1034 ⓘ |
| religion | Roman Catholicism ⓘ |
| spouse | Judith of Schweinfurt NERFINISHED ⓘ |
| successor | Spytihněv II NERFINISHED ⓘ |
| territorialExpansion |
parts of Lesser Poland
ⓘ
parts of Moravia ⓘ parts of Silesia ⓘ |
| title | "father of the Czech state" (sometimes used in historiography) ⓘ |
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: Bretislaus I Description of subject: Bretislaus I was an 11th-century Duke of Bohemia known for consolidating Přemyslid power, expanding Bohemian territory, and strengthening the region’s political and ecclesiastical independence within the Holy Roman Empire.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.