Bolesław was born in 1208, the son of Konrad I von Masowien and Agafia Svyatoslavna. The place is not known.
He died in 1248. The place is not known.
He had two marriages/partners. His first wife was Gertrud von Polen, who he married in BEF 1232. The place has not been found. They had no known children.
His second wife was Anastasia von Belz, who he married in 1246. The place has not been found. They had no known children.
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Bolesław I von Masowien |
Konrad I von Masowien |
Kazimierz II Bolesławowic |
Bolesław III Krzywousty |
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Salomé von Berg-Schenklingen |
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Elena von Znaim |
Konrad II von Znaim |
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Marija Serbska |
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Agafia Svyatoslavna |
Svyatoslav Igorovich |
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Rurik Rostislavich |
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Anna Yuryevna |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | 1208 |
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| Death | 1248 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1229 TO 1232 | duc de Sandomierz | ||||
| Nobility Title | FROM 1233 TO 1248 | duc de Nord-Masovie | ||||
| Nobility Title | FROM 1247 TO 1248 | duc de Masovie |