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Bolesław II, Duke of Cieszyn

Member of the Silesian Piasts
Bolesław II of Cieszyn, was a Duke of Cieszyn since 1431, ruler over half of Bielsko and Frysztat, and during 1452 sole ruler over one half of Bytom. He was the fourth and youngest son of Duke Bolesław I of Cieszyn by his second wife Euphemia,... Wikipedia