"Bolesław V the Chaste (Polish: Bolesław Wstydliwy; 21 June 1226 – 7 December 1279) was the Duke of Sandomierz in Lesser Poland from 1232 and High ...
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Duke of Poland from 1243 until his death, as the last male representative of the Lesser Poland branch of Piasts." - (en.wikipedia.org 31.01.2020)
