Having been successful in the Rhineland, where he had captured Philippsburg and Worms, Turenne joined his forces to those of Sweden under Wrangel and advanced into Bavaria.
Again he joined the emperor, but his punishment was swift and sure, as Turenne and Wrangel again marched into the electorate and defeated the Bavarians at Zusmarshausen, near Augsburg, in May 1648.
When, on the evening of the 3oth, a mob surrounded the palace, clamouring for the king to give effect to this resolution, Frederick William lost patience, ordered General Wrangel to occupy Berlin with troops, and on the 2nd of November placed Count Brandenburg, a scion of the royal house and a Prussian of the old school, at the head of a new ministry.
The dispositions previously made by Osterman enabled him, however, to counter the blow, and all danger from Sweden was over when, early in September, Field-Marshal Lacy routed the Swedish general Wrangel under the walls of the frontier-fortress of Villmanstrand, which was carried by assault.
Among the tragic writers of the age we may mention Dalin, Gyllenborg, and Erik Wrangel (1686-1765).