Casimir II the Just was a Polish prince who ruled from 1177 to 1194. He was a member of the Piast dynasty and is known for his efforts to restore and strengthen the Polish state after a period of fragmentation. His reign was marked by a focus on justice and the welfare of his subjects, earning him the title "the Just." During his rule, Casimir II worked to consolidate power and improve relations with the Church and neighboring territories. He also promoted economic development and supported the establishment of towns, which contributed to the growth of trade in Poland. His leadership helped lay the groundwork for future stability in the region.