What major event occurred on 20 June 1791 that revealed the true intentions of the king?

The event on 20 June 1791 that significantly revealed the true intentions of King Louis XVI was the Flight to Varennes. This event involved King Louis XVI and his family attempting to escape from Paris to seek refuge in the eastern part of France, where they could rally support from royalist forces. Their capture at Varennes upon reaching this location exposed the king's desire to abandon the revolutionary government, aligning himself with solid royalist elements.

This flight was seen by many as a betrayal and a clear indication that the king did not support the principles of the Revolution and was not committed to the constitutional monarchy that had been established after the fall of the Bastille. The failed attempt led to a significant decline in the public's trust in the monarchy and escalated tensions between the king and the revolutionaries, ultimately contributing to the king’s eventual imprisonment and execution.

In contrast, the Champ de Mars Massacre involved the violent suppression of a political gathering in 1791; the Brunswick Manifesto was a declaration by foreign monarchs threatening invasion if the king was harmed; and the Storming of the Tuileries occurred in August 1792 and marked a critical moment of violence during the Revolution. Each of these events had its own significance, but none