<page_title> List of Austrian consorts </page_title> <section_title> Ernestine line </section_title> <table> <cell> Cymburgis of Masovia <col_header> Name </col_header> </cell> <cell> Siemowit IV, Duke of Masovia (Piast) <col_header> Father </col_header> </cell> <cell> 1394/1397 <col_header> Birth </col_header> </cell> <cell> 25 January 1412 archduchess as of 1414 <col_header> Marriage </col_header> <col_header> Became Duchess </col_header> </cell> <cell> 10 June 1424 husband's death <col_header> Ceased to be Duchess </col_header> </cell> <cell> 28 September 1429 <col_header> Death </col_header> </cell> </table>
Cymburgis of Masovia, a Piast born in1394 or 1397 and died on 28 September 1429, was Duchess of Austria from 1412 until 1424, by her marriage.