Whilst Louis lay ill at Metz, France received an unexpected relief. Prince Charles was hastily recalled to cope with Frederick of Prussia, who had now joined France in the counter-league of Frankfort, and burst into the territories of Maria Theresa. He found in Prague a garrison of fifteen thousand men, yet by the 15th of September he had reduced the place, after a ten days' siege. At the same time Marshal Seckendorf, the Imperial general, entered Bavaria, which was defended only by a small force, and quickly reinstated Charles on the throne of Munich. Vienna itself was in the greatest alarm, lest the enemies uniting should pay it a visit. But this danger was averted by the rapid return of Prince Charles of Lorraine from before Strasburg. He had to pass the very front of the French army; nevertheless, he conducted his forces safely and expeditiously to the frontiers of Bohemia, himself hastening to Vienna to consult on the best plan of operations. Maria Theresa again betook herself to her heroic Hungarians, who, at her appeal, once more rushed to her standard; and Frederick, in his turn alarmed, called loudly on the French for their promises of assistance, but called in vain. The French had no desire for another campaign in the heart of Austria. The Prussian invader, therefore, soon found himself menaced on all sides by Austrians, Croatians, and Hungarian troops, who harassed him day and night, cut off his supplies and his forages, and made him glad to retrace his steps in haste. Carteret--or Granville, as we must now style him, for he succeeded to the earldom in 1744--still retained the favour of the king precisely in the same degree as he had forfeited that of the people and the Parliament, by his unscrupulous support of George's Hanoverian predilections. Elated with the favour of the king, Granville insisted on exercising the same supreme power in the Cabinet which Walpole had done. This drove Pelham and his brother, Newcastle, to inform the king that they or Granville must resign. George, unwilling to part with Granville, yet afraid of offending the Pelham party, and risking their support of the large subsidies which he required for Germany, was in a great strait. He sent for Lord Orford up from Houghton, who attended, though in the extreme agonies of the stone, which, in a few months later, brought him to his end. Walpole, notwithstanding the strong desire of the king to retain Granville, and that also of the Prince of Wales--who on this and all points connected with Hanover agreed with the king, though no one else did--decided that it was absolutely necessary that he should resign; and accordingly, on the 24th of November, Granville sullenly resigned the seals, and they were returned to his predecessor, the Earl of Harrington.