Treaty of Schönbrunn Schlossberg fortress, whose garrison had firmly resisted the French occupation forces, was largely demolished. Austria also had to apply Napoleon's Continental System, as Britain remained at war with France. One contemporary British view on the treaty was: Though considerably weakened, Austria remained a European great power. Emperor Francis I approached to the French by marrying his daughter Marie Louise off to Napoleon (whom she at first detested) in 1810. As a result of Metternich's change of policies, the Austrian forces joined the French invasion of Russia in 1812. During the negotiations at Schönbrunn, Napoleon narrowly escaped an attempt on his
Nine-Power Treaty Nine-Power Treaty The or Nine Power Agreement () was a 1922 treaty affirming the sovereignty and territorial integrity of China as per the Open Door Policy. This was after the Suzerainty system fell apart after the Western invasions of the Opium Wars, that outlawed the Chinese "Closed Door Policy" into China of the former Imperial Qing dynasty. The Nine-Power Treaty was signed on 6 February 1922 by all of the attendees to the Washington Naval Conference: the United States, Belgium, the British Empire, Republic of China, France, Italy, Japan, the Netherlands, and Portugal. United States Secretary of State John Hay