Meanwhile, the Coup of 18 Fructidor (4 September 1797) in Paris boosted radical forces demanding an annexation of the Left Bank by the French motherland. When General Hoche died unexpectedly on September 18 at the age of 29, the Cisrhenian Republic lost her strongest advocate. By the Treaty of Campo Formio on 18 October 1797, Emperor Francis II accepted the Rhine border and the administration of the region was officially assigned to France. By 1798 the lands west of the Rhine were organized by French Commissioner François Joseph Rudler into the ' of , , and . Rudler also had the French ' implemented, what "de facto" marked the end of the planned autonomous Republic.