Wallenstein fought for the Catholics in the Protestant Bohemian revolt of 1618 and was awarded estates confiscated from the rebels after their defeat at White Mountain in 1620. A series of military victories against the Protestants raised Wallenstein's reputation in the Imperial court and in 1625 he raised a large army of 50,000 men to further the Imperial cause. A year later, he administered a crushing defeat to the Protestants at Dessau Bridge. For his successes, Wallenstein became an Imperial count palatine and made himself ruler of the lands of the Duchy of Friedland in northern Bohemia.