Caption:
Declaration of Pillnitz, 27 August 1791. (Austria and Prussia make an appeal to the European Sovereignty for solidarity against the French Revolution). Emperor Leopolds II, Frederick-Wilhelm II of Prussia and Frederick Augustus III of Saxony meet on 25-27 August. Copper engraving, c. 1820, by Frederick Fleischmann after Manfred Heideloff. Paris, Bibliothèque Nationale.