As a condition for his daughter, Marie Louise, marrying Napoleon, Francis demands the return of Silesia from Prussia. Napoleon agrees, knowing it would ruin Austrian-Prussian relations. When Napoleon was defeated Francis does not want to give Silesia up. With Prussia demands for Saxony and Russian demands for Poland, Francis proposes that the border between their countries is the 1795 border, Ottoman land north of the Danube to Russia and Saxony to Prussia.