Here, on 15th December 1805, the Treaty of Schönbrunn was signed between Prussia and France, and on 14th October 1809, the Peace of Schönbrunn was signed between France and Austria, as a result of which the lands of the Duchy of Warsaw were expanded to include the territories of the Third Partition of Poland.
In 1815, Schönbrunn was the site of the Congress of Vienna. Also in the palace, on 11th November 1918, the last Emperor Charles I signed an act of abdication and renunciation of claims to the Habsburg possessions in Austria.
