ヴァレンヌ事件
In 20–21 June 1791, the Governors was ready to welcome Louis XVI and Marie Antoinette during their intended escape during the Flight to Varennes. When the royal party was arrested near the border and escorted back to Paris, the brothers of Louis XVI, the counts of Provence and Artois, appeared in Brussels and asked Maria Christina to make a military intervention and send troops across the border to France and apprehend the royal party before they reached Paris, but Maria Christina refused, stating that she would need the emperor's permission to perform such an act, by which time it would already be too late.