471 When the Austrian general conducting the siege at Neisse heard of the rapid approach of Frederick, he, in consternation, blew up many of his works, abandoned several guns, and, on the 6th of November, fled with his army over the hills to the south, to take shelter in Austria. Frederick triumphantly entered Neisse, and, having driven the Austrians from every outpost, commenced, with a recruited army, his return march to Dresden. The more slow-footed Daun did not reach Dresden till the 8th of the month. The city, outside of the walls, was crowded with the dwellings of the more respectable citizens, and the beautiful mansions of the wealthy. The King of Poland was Elector of Saxony, and was in alliance with Austria. For the Austrian commander to pursue any measure which should lead to the destruction, in whole or in part, of this beautiful capital, would inflict a terrible blow upon the subjects of the ally of Austria.On the 15th of September, two days before Frederick had written the despairing letter we have just given, Wilhelmina wrote again to him, in response to previous letters, and to his poetic epistle.My dear Brother, my dear Sister,I write you both at once for want of time. I have as yet received no answer from Vienna. I shall not get it till to-morrow. But I count myself surer of war than ever, as the Austrians have named their generals, and their army is ordered to march to K?niggr?tz. So that, expecting nothing else but a haughty answer, or a very uncertain one, on which there will be no reliance possible, I have arranged every thing for setting out on Saturday next.In the account which Frederick gave, some years after, of this campaign, in his Histoire de Mons Temps, he wrote:185 On the 26th of May the Crown Prince received an express informing him that his father was dying, and that he must hasten to Potsdam with the utmost speed if he would ever again see him alive. Reinsberg was about thirty miles north from Potsdam. It took the courier some hours to reach the place. Frederick, with emotions not easily imagined, started before the dawn of the morning, followed by a train of attendants, to hasten to the death-bed of his father, and to receive the kingly crown of Prussia.