Bolesław the Pious

Bolesław the Pious (1224/27–1279) was a Piast duke of Greater Poland, the second son of Duke Władysław Odonic. From 1257 he ruled the whole duchy, succeeding his brother Przemysł I and guarding his infant nephew Przemysł II. In 1258 he married Jolenta, daughter of King Béla IV of Hungary, and in 1262–1264 he was regent of Masovia for Konrad II.

In 1264 he issued the Statute of Kalisz, the first written charter of privileges for the Jews of Greater Poland. On his death in 1279 his lands passed to Przemysł II.