¿Quién se casó con Maria (wife of Bolesław IV the Curly)?

Maria (c. 1140 – after 1173) was by marriage High Duchess of Poland.

By the majority of historians and web sources, her parentage is unknown; however, others authors believed that she was a daughter of Rostislav I Mstislavich, Grand Prince of Kiev.

Bolesław IV the Curly (Polish: Bolesław Kędzierzawy; c. 1122 – 5 January 1173), a member of the Piast dynasty, was Duke of Masovia from 1138 and High Duke of Poland from 1146 until his death in 1173.