Stefan Czarniecki was a notable Polish military leader and nobleman during the 17th century. He is best known for his role in the Polish–Lithuanian Commonwealth and his contributions to the Wars of the Polish Succession. Czarniecki gained fame for his guerrilla tactics and leadership during conflicts with the Swedes and Cossacks. Czarniecki was born in 1599 and became a prominent figure in the Polish army. His military career was marked by several significant victories, which earned him the title of a national hero in Poland. He passed away in 1682, leaving a legacy of bravery and strategic prowess.