<P> Since the French Revolution of 1789, Leopold had become increasingly concerned about the safety of his sister, Marie - Antoinette, and her family but felt that any intervention in French affairs would only increase their danger . At the same time, many French aristocrats were fleeing France and taking up residence in neighbouring countries, spreading fear of the Revolution and agitating for foreign support to Louis XVI . After the Flight to Varennes in June 1791, Louis had been arrested and was imprisoned . On 6 July 1791, Leopold issued the Padua Circular, calling on the sovereigns of Europe to join him in demanding Louis' freedom . </P> <P> The declaration stated that Austria would go to war if and only if all the other major European powers also went to war with France . Leopold chose this wording so that he would not be forced to go to war; he knew the British prime minister, William Pitt did not support war with France . Leopold issued the declaration only to satisfy the French emigres who had taken refuge in his country and were calling for foreign interference in their homeland . </P> <P> Calling on European powers to intervene if Louis was threatened, the declaration was intended to serve as a warning to the French revolutionaries to stop infringing on the king's prerogatives and to permit his resumption of power . </P> <P> (The Pillnitz Conference itself dealt mainly with the Polish Question and the war of Austria against the Ottoman Empire .) </P>

What was the purpose of austria and prussia's declaration of pillnitz quizlet