Boleslav III was a Polish prince who ruled during the early 12th century. He was a member of the Piast dynasty and became the Duke of Poland after the death of his father, Bolesław II. His reign was marked by internal conflicts and struggles for power among the Polish nobility. Boleslav III is known for his efforts to consolidate power and maintain the unity of the Polish state. He faced challenges from rival factions and external threats, particularly from the Holy Roman Empire. His leadership played a significant role in shaping the political landscape of medieval Poland.