Bolesław_of_Cieszyn_(d._1356)
Bolesław of Cieszyn (Polish: Bolesław cieszyński; c. 1331/32 – Prague, 23 July 1356), was a Polish prince, member of the Piast dynasty in the Cieszyn branch.
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He was the second son of Casimir I, Duke of Cieszyn, by his wife Euphemia, daughter of Duke Trojden I of Czersk-Warsaw.