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Euphemia of Masovia

Euphemia (c. 1310 – after 1374) was a Piast princess of Masovia, daughter of Trojden I, Duke of Czersk and Warsaw, and Maria of Halych. In 1324 she married Casimir I, Duke of Cieszyn, and bore nine children, including Władysław and Przemysław I Noszak.

References

  1. pl.wikipedia.org/wiki/Eufemia_mazowiecka_(ok._1310–po_1374)
  2. en.wikipedia.org/wiki/Trojden_I_of_Masovia
  3. en.wikipedia.org/wiki/Casimir_I_of_Cieszyn