Henry II

…Europe, one Mongol army defeated Henry II, Duke of Silesia (now in Poland), on April 9, 1241; another army led by Batu himself defeated the Hungarians two days later.

The duke of Silesia, Henry II (the Pious), who had been gathering forces to reunite Poland, perished in the Battle of Legnica (Liegnitz) in 1241, and the devastation wrought by the Mongols may have contributed to the above-mentioned colonization.

…Henry I and his son Henry II, tried without success to reunite the territory. In 1241 Henry II was killed in the Battle of Legnica (Liegnitz), in which his army of Polish and German knights halted an invasion of Mongols who had ravaged the country.