Boleslaus I the CruelBoleslav (or Boleslaus) I the Cruel (? 972), was the Duke of Bohemia from 929 or 935 to July 15 972. His father was Vratislav I of Bohemia, Duke of Bohemia. Boleslav I had a son named Boleslav II the Pious of Bohemia, Duke of Bohemia, and a sister named D (935-972)
Boleslaus II the PiousBoleslav II the Pious (died February 7 999) was the son of Boleslav I the Cruel. Boleslav II became Duke (or prince) of Bohemia in 972. Boleslav maintained good relations with the German Kingdom, and in 975 supported Otto II in his civil war against Henry (972-999)
Boleslaus IIIBoleslav (Boleslaus) III (died 1035/ 1036) was duke of Bohemia from 999 until 1002. The eldest son of Boleslaus II the Pious. Boleslaus III was a weak ruler in whose chaotic reign, Bohemia became a pawn in the long war between the Holy Roman Emperor Henry (999-1002)
Boleslaus I of PolandBoleslaw I Chrobry Reign From 992until 1025 Coronation On April 18, 1025in Gniezno Cathedral, Poland Royal House Piast Coat of Arms Orzel Piastowski Predecessor Mieszko I Successor Mieszko II Parents Mieszko I Dubrawka Consorts Rikdaga Judith Enmilda Oda (1003-1004, duke of Poland), Piast