About Bolesław I of Masovia

Bolesław I of Masovia, was a Polish prince, a member of the Polish House of Piast, Duke of Sandomierz during 1229–1232, Duke of Dobrzyń during 1233–1247 and Duke over the whole Masovia during 1247–1248.

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Occupation: monarch, feudatory
Position held: Duke of Masovia
Born: 1208
Died: 1248, 1248

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Facts from Wikidata (CC0). Image by Franciszek Piekosiński via Wikimedia Commons (Public domain).

Bolesław I of Masovia

Polish noble

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