Throughout the month of November French armies overran Northern Germany: Napoleon himself remained at Berlin, and laid the foundations of a political system corresponding to that which he had imposed upon Southern Germany after the victory of Austerlitz. The Houses of Brunswick and Hesse-Cassel were deposed, in order to create a new client-kingdom of Westphalia; Saxony, with Weimar and four other duchies, entered the Confederation of the Rhine. A measure more widely affecting the Continent of Europe dated from the last days of the Emperor's residence at the Prussian capital. On the 21st of November, 1806, a decree was published at Berlin prohibiting the inhabitants of the entire European territory allied with France from carrying on any commerce with Great Britain, or admitting any merchandise that had been produced in Great Britain or in its colonies. [135] The line of coast thus closed to the shipping and the produce of the British Empire included everything from the Vistula to the southern point of Dalmatia, with the exception of Denmark and Portugal and the Austrian port of Trieste. All property belonging to English subjects, all merchandise of British origin, whoever might be the owner, was ordered to be confiscated: no vessel that had even touched at a British port was permitted to enter a Continental harbour. It was the fixed purpose of Napoleon to exhaust Great Britain, since he could not destroy its navies, or, according to his own expression, to conquer England upon the Continent. All that was most harsh and unjust in the operation of the Berlin Decree fell, however, more upon Napoleon's own subjects than upon Great Britain. The exclusion of British ships from the harbours of the allies of France was no more than the exercise of a common right in war; even the seizure of the property of Englishmen, though a violation of international law, bore at least an analogy to the seizure of French property at sea; but the confiscation of the merchandise of German and Dutch traders, after it had lain for weeks in their own warehouses, solely because it had been produced in the British Empire, was an act of flagrant and odious oppression. The first result of the Berlin Decree was to fill the trading towns of North Germany with French revenue-officers and inquisitors. Peaceable tradesmen began to understand the import of the battle of Jena when French gendarmes threw their stock into the common furnace, or dragged them to prison for possessing a hogshead of Jamaica sugar or a bale of Leeds cloth. The merchants who possessed a large quantity of English or colonial wares were the heaviest sufferers by Napoleon's commercial policy: the public found the markets supplied by American and Danish traders, until, at a later period, the British Government adopted reprisals, and prevented the ships of neutrals from entering any port from which English vessels were excluded. Then every cottage felt the stress of the war. But if the full