The Battle of Legnica took place on April 9, 1241, during the Mongol invasions of Europe. It was fought between the forces of the Kingdom of Poland, led by Henry II the Pious, and the invading Mongol army under Batu Khan. The battle occurred near the town of Legnica in present-day Poland and was part of a larger campaign by the Mongols to expand their territory into Europe. Despite the valiant efforts of the Polish knights, the Mongols emerged victorious, utilizing their superior tactics and mobility. The defeat had significant consequences for the region, leading to increased Mongol influence and further invasions into Europe. The battle is remembered as a pivotal moment in the history of Poland and the Mongol Empire.