Violated Élizabeth de Cieszyn (in Polish Wiola Elżbieta Cieszyńska , in Czech Viola Alžběta Těšínská ), from the dynasty of Piasts, was born towards 1290 and died the September 21st 1317.

Girl of Mieszko de Cieszyn, it marries Venceslas III the October 5th 1305. She is crowned queen of Poland and Bohemia shortly after. Ten months after its marriage, it becomes widowed following the assassination of Venceslas the August 4th 1306 with Olomouc. In 1316, it remarie with Pierre Ier de Rosenberg, a Czech Tycoon . She dies the September 21st 1317 by not leaving any child.