After the conclusion of the campaign, John again evolved plans for a widespread rebellion. However, upon the Treaty of Schönbrunn Austrian policies under Minister Klemens von Metternich sought a rapprochement to France. John's friend Baron Joseph Hormayr and other conspirators were arrested, the Archduke himself effectively was sidelined and retired to his estates in Thernberg. For many years thereafter, rumors dogged him that he and Hormayr had evolved plans to create a Kingdom of Rhaetia from out of Austrian and Bavarian Alpine possessions. These rumors increased his isolation from the Court.