Pursuing his way to Silesia, Batu overthrew the confederated Silesian princes at Liegnitz (April 9), and, after burning all the Silesian towns, invaded Hungary, where he routed King Bela IV.
On his return to Liegnitz he helped to spread the principles of the Reformation in the principality and in Silesia, while warning his colleagues against the abuse of the doctrine of justification by faith.
And is the largest in Prussia, is divided into three governmental districts, those of Liegnitz and Breslau comprising lower Silesia, and of Oppeln taking in the greater part of mountainous Silesia.
This came from the Mongols who ravaged the eastern frontiers of the country, but the peril was warded off by the efforts of Henry II., duke of Silesia, who lost his life in a fight against these foes near Liegnitz in April 1241, and of Wenceslaus I., king of Bohemia.
They invaded Europe about 1237 under the leadership of Bail Khan, a younger son of Juji, eldest son of Jenghiz Khan, passed over Russia with slaughter and destruction, and penetrated into Silesia, Poland and Hungary, finally defeating Henry II., duke of Silesia, at Liegnitz in the battle known as the Wahlstatt on the 9th of April 1241.
See Schuchard, Die Stadt Liegnitz (Berlin, 1868); Sammter and Kraffert, Chronik von Liegnitz (Liegnitz, 1861-1873); Jander, Liegnitz in seinem Entwickelungsgange (Liegnitz, 1905); and Fiihrer fur Liegnitz and seine Umgebung (Liegnitz, 1897); and the Urkundenbuch der Stadt Liegnitz bis 1455, edited by Schirrmacher (Liegnitz, 1866).
On the 15th of August 1760 Frederick the Great gained a decisive victory near Liegnitz over the Austrians, and in August 1813 Blucher defeated the French in the neighbourhood at the battle of the Katzbach.
Availing himself of a testamentary union made in 1 537 between the duke of Liegnitz and the elector of Brandenburg, and of an attempt by the elector Frederick William to call it into force in spite of its annulment by Ferdinand I.
The growing resources of the Silesian duchies are exemplified by the strength of the army with which Henry II., duke of Lower Silesia, broke the force of the Mongol invasion at the battle of Liegnitz (1241), and by the glamour at the court of the Minnesinger, Henry IV.
Letters and writings of his own (1527-1528) proved him to hold strongly anti-Lutheran heresies, and both Catholics and Lutherans urged the duke of Liegnitz to dismiss him.