The Duke of Brunswick was, meanwhile, again victorious at Billinghausen over the French, and covered the King on that side. On the other hand, the junction of the Austrians with the Russians was effected in 1761; the allied army amounted in all to one hundred thirty thousand men, and Frederick's army, solely consisting of fifty thousand, would in all probability have again been annihilated had he not secured himself behind the fortress of Schweidnitz, in the strong position at Bunzelwitz. Butterlin, the Russian general, was moreover little inclined to come to an engagement on account of the illness of the Empress and the favor with which Frederick was beheld by the successor to the throne. It was in vain that Laudon exerted all the powers of eloquence; the Russians remained in a state of inactivity and finally withdrew. Laudon avenged himself by unexpectedly taking Schweidnitz under the eyes of the King by a clever _coup-de-main_, and had not a heroic Prussian artilleryman set fire to a powder-magazine, observing as he did so, "All of ye shall not get into the town!" and blown himself with an immense number of Austrians into the air, he would have made himself master of this important stronghold almost without losing a man. Frederick retreated upon Breslau. The Empress Elizabeth expired in the ensuing year, 1762, and was succeeded by Peter III, who instantly ranged himself on the side of Prussia. Six months afterward he was assassinated, and his widow seized the reins of government under the title of Catharine II. Frederick was on the eve of giving battle to the Austrians at Reichenbach in Silesia, and the Russians under Czernichef were under his command, when the news arrived of the death of his friend and of the inimical disposition of the new Empress, who sent Czernichef instant orders to abandon the Prussian banner. Such was, however, Frederick's influence over the Russian general that he preferred hazarding his head rather than abandon the King at this critical conjuncture, and, deferring the publication of the Empress' orders for three days, remained quietly within the camp. Frederick meanwhile was not idle, and gained a complete victory over the Austrians (July 21, 1762).