Marie Antoinette the king denouncing the queen's role in these matters, urged by the queen, Louis XVI disbanded the government, thus losing his majority in the Assembly. Dumouriez resigned and refused a post in any new government. At this point, the tide against royal authority intensified in the population and political parties, while Marie Antoinette encouraged the king to veto the new laws voted by the Legislative Assembly in 1792. In August 1791, the Declaration of Pillnitz threatened an invasion of France. This led in turn to a French declaration of war in April 1792, which led to the French Revolutionary Wars
Marie Antoinette main grievances and causes of the French Revolution. Marie Antoinette's second pregnancy ended in a miscarriage early in July 1779, as confirmed by letters between the queen and her mother, although some historians believed that she may have experienced bleeding related to an irregular menstrual cycle, which she mistook for a lost pregnancy. Her third pregnancy was affirmed in March 1781, and on 22 October she gave birth to Louis Joseph Xavier François, Dauphin of France. Empress Maria Theresa died on 29 November 1780 in Vienna. Marie Antoinette feared that the death of her mother would jeopardise the Franco-Austrian alliance