Anna_of_Racibórz
Anna of Racibórz (Polish: Anna raciborska; b. 1292/98 – d. 1 January/21 August 1340), was a Polish princess member of the House of Piast in the Racibórz branch and by marriage Duchess of Opawa and Racibórz.
She was the second child but eldest daughter of Duke Przemysław of Racibórz by his wife Anna, daughter of Duke Konrad II of Masovia.[1]