Napoleon, enivré of its victory, alters Europe, gives Naples to his brother Joseph, Holland with his Louis brother, and forms the Confederation of the Rhine to dominate Germany.
England, Russia, Prussia and Sweden form against Napoleon the fourth coalition (1806).
Napoleon crosses Thuringe, folds back himself on the left on the Prussians, and destroyed one their armies with Iéna, while Davout beats the other in Auerstoedt (October 14); the French Army enters to Berlin and Prussia is almost entirely conquered.
Napoleon, who wants to reduce England, imagines the continental blockade, which closes with the English ships all the ports of the continent (1806).
He turns himself then against the Russians, inflicts to them a series of reverse in Poland, then beats them in Eylau (February 1807), and destroys them in Friedland (June 14, 1807).
Overcome Prussia and Russia sign the treaty of Tilsitt, by which they adherent with the continental blockade.
Prussia loses its share of Poland and its provinces ranging between the Rhine and Elba.
Saxony, increased on behalf of Poland removed in Prussia, is set up in kingdom.
Finally another kingdom is formed in Germany, the kingdom of Westphalia, that Napoleon gives his Jérome brother.