Henry II the Pious of Silesia was the third son of Henry I the Bearded of Silesia and of Hedwig of Andechs. Henry the Pious succeeded his father in 1238 and became the most powerful of the all Polish dukes. He united majority of Polish teritories - (Silesia, Great Poland and Little Poland). In 1239 supported the pope in his conflict with emperor Frederic II. He was able to defend his territories against Brandenburg. Henry the Pious was killed in battle against the Mongols at Legnica (in the Battle of Legnica) in 1241.