<page_title> List of Polish monarchs </page_title> <section_title> Piast high dukes </section_title> <table> <cell> Bolesław V the Chaste Polish: Bolesław Wstydliwy High Duke Supreme Prince <col_header> Name </col_header> </cell> <cell> 21 June 1226 – 7 December 1279 <col_header> Lifespan </col_header> </cell> <cell> 1243 <col_header> Reign start </col_header> </cell> <cell> 1279 <col_header> Reign end </col_header> </cell> <cell> Piast <col_header> Family </col_header> </cell> </table>
Bolesław V the Chaste (Polish: Bolesław Wstydliwy; 21 June 1226 – 7 December 1279) was the Duke of Poland from 1243 until his death, as the male representative of the Poland branch of Piasts.