Bolesław V the Chaste
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Bolesław V the Chaste was Duke of Sandomierz in Lesser Poland from 1232 and High Duke of Poland from 1243 until his death, as the last male representative of the Lesser Polish branch of Piasts.
Bolesław's effigy on a seal
Bolesław Wstydliwy (1893) by Jan Matejko
A 14th century depiction of the Battle at Legnica against the Mongols.
Battle of Kressenbrunn (1260) during which Bolesław aided the Hungarians under Béla IV against Ottokar II of Bohemia.
Leszek II the Black
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Leszek II the Black was a Polish prince of the House of Piast, Duke of Sieradz since 1261, Duke of Łęczyca since 1267, Duke of Inowrocław from 1273 to 1278, Duke of Sandomierz and High Duke of Poland
Bolesław V the Chaste
…Hungary and Bohemia, when the Hungarian prince Stephen organised a marauding expedition to the Duchy of Carinthia. From June to July 1260, Bolesław, with Leszek the Black, helped the Hungarians with troops in their fight against Bohemia. On 12 July, the Battle of Kressenbrunn took place, which ended with the defeat of…
Seal featuring Leszek the Black kneeling before Saint Stanislaus, 1281–1288