Bolesław IV the Curly
Member of the Piast dynasty
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Bolesław IV the Curly, a member of the Piast dynasty, was Duke of Masovia from 1138 and High Duke of Poland from 1146 until his death in 1173. Wikipedia
Born: 1125
Died: January 5, 1173 (age 48 years)
Spouse: Maria (m. 1167–1173) and Viacheslava of Novgorod (m. 1137)
Parents: Bolesław III Wrymouth and Salomea of Berg
Children: Leszek, Duke of Masovia
Nickname: the Curly