book 2, chapter 2 (volume 1).

ALSO IN: _Frederick II., History of My Own Times (Posthumous Works, volume 1, chapter 5)._

AUSTRIA: A. D. 1741 (October). Secret Treaty with Frederick. Lower Silesia conceded to him. Austrian success.

"By October, 1741, the fortunes of Maria Theresa had sunk to the lowest ebb, but a great revulsion speedily set in. The martial enthusiasm of the Hungarians, the subsidy from England, and the brilliant military talents of General Khevenhuller, restored her armies. Vienna was put in a state of defence, and at the same time jealousies and suspicion made their way among the confederates. The Electors of Bavaria and Saxony were already in some degree divided; and the Germans, and especially Frederick, were alarmed by the growing ascendency, and irritated by the haughty demeanour of the French. In the moment of her extreme depression, the Queen consented to a concession which England had vainly urged upon her before, and which laid the foundation of her future success. In October 1741 she entered into a secret convention with Frederick [called the convention of Ober-Schnellendorf], by which that astute sovereign agreed to desert his allies, and desist from hostilities, on condition of ultimately obtaining Lower Silesia, with Breslau and Neisse. Every precaution was taken to ensure secrecy. It was arranged that Frederick should continue to besiege Neisse, that the town should ultimately be surrendered to him, and that his troops should then retire into winter quarters, and take no further part in the war. As the sacrifice of a few more lives was perfectly indifferent to the contracting parties, and in order that no one should suspect the treachery that was contemplated, Neisse, after the arrangement had been made for its surrender, was subjected for four days and four nights to the horrors of bombardment. Frederick, at the same time talked, with his usual cynical frankness, to the English ambassador about the best way of attacking his allies the French; and observed, that if the Queen of Hungary prospered, he would perhaps support her, if not--everyone must look for himself. He only assented verbally to this convention, and, no doubt, resolved to await the course of events, in order to decide which Power it was his interest finally to betray; but in the meantime the Austrians obtained a respite, which enabled them to throw their whole forces upon their other enemies. Two brilliant campaigns followed. The greater part of Bohemia was recovered by an army under the Duke of Lorraine, and the French were hemmed in at Prague; while another army, under General Khevenhuller, invaded Upper Austria, drove 10,000 French soldiers within the walls of Linz, blockaded them, defeated a body of Bohemians who were sent to the rescue, compelled the whole French army to surrender, and then, crossing the frontier, poured in a resistless torrent over Bavaria. The fairest plains of that beautiful land were desolated by hosts of irregular troops from Hungary, Croatia, and the Tyrol; and on the 12th of February the Austrians marched in triumph into Munich. On that very day the Elector of Bavaria was crowned Emperor of Germany, at Frankfort, under the title of Charles VII., and the imperial crown was thus, for the first time, for many generations, separated from the House of Austria."

_W. E. H. Lecky, History of England, 18th Century,