Around 1125 Władysław married Agnes of Babenberg, daughter of Margrave Leopold III of Austria; this union gave him a close connection with the Holy Roman Empire and the Kingdom of Germany: Agnes by her mother was a granddaughter of Emperor Henry IV and a half-sister of the Franconian duke Conrad III of Hohenstaufen, the later King of Germany. Thanks to Władysław, Silesia was saved during the wars of 1133–1135 with Bohemia: he stopped the destruction of the major areas of his district after the Bohemian forces crossed the Oder river.