Bolesław I of Masovia

Born:

ca. 1210

Died:

05.12.1248

Place of burial:

Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Płock

Titles

• Duke of Masovia
• Duke of Sandomierz
• Duke of Sieradz

Relations

• father: Konrad I of Masovia
• mother: Agafia Svyatoslavna
• wife: Gertrude of Silesia
• wife: Anastasia of Belz

Bibliography

• Kazimierz Jasiński, Rodowód Piastów małopolskich i kujawskich, Wydawnictwo Historyczne, Poznań - Wrocław 2001
• Janusz Grabowski, Dynastia Piastów mazowieckich, Avalon, Kraków 2012