Representatives of European powers, i.e. Austria, Britain, Russia and Prussia, met at Vienna in 1815 after having defeated Napoleon. The Austrian Chancellor Duke Metternich was the head of the Congress. Here the Treaty of Vienna of 1815 was drawn up to undo the changes after the Napoleonic wars. Thus the Bourbon dynasty, deposed during the French Revolution,was put back in power even as France lost the territories it had annexed under Napoleon. To prevent every future expansion of France, many states were set up on France’s boundaries.So the kingdom of Netherlands including Belgium came up in the north, while Genoa came together with Piedmont in the south. Prussia received some important new territories on its western frontiers. Austria gained control of northern Italy. The 39 states in the German Confederation as set up by Napoleon underwent no changes. In the east, Russia received a part of Poland and Prussia received a part of Saxony. The objective was to restore the monarchies overthrown by Napoleon and create a new conservative order in Europe.