Siemowit III

Born:

1316/1325

Died:

16.06.1381

Place of burial:

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

Titles

• Duke of Masovia
• Duke of Płock
• Duke of Czersk
• Duke of Warsaw
• Duke of Rawa

Relations

• father: Trojden I
• mother: Mary of Galicia
• wife: Eufemia of Opawa
• daughter: Anna Siemowitówna
• daughter: Eufemia
• son: Janusz I the Old
• daughter: Margaret of Masovia
• son: Siemowit IV
• wife: Anna of Ziębice
• son: Stanisław Siemowit
• son: N.N. (son of Siemowit III)
• son: Henry of Masovia

Bibliography

• Oswald Balzer, Genealogia Piastów, Avalon, Kraków 2005
• Janusz Grabowski, Dynastia Piastów mazowieckich, Avalon, Kraków 2012