Why were European monarchs concerned in 1792?

By 1792, European Monarchs were concerned that the revolution could spread to their countries. When former members of the nobility and anti-revolutionaries arrived in neighboring countries, they told stories about the chaos of the revolution.

The Convention that met in September 1792 was a more radical body than earlier assemblies. It voted to abolish the monarchy and establish the French Republic. Under this new government, Louis XVI and his queen were executed. ... War with other European nations and internal rebellions concerned the government.

- BRAINLIEST answerer

PLEASE MARK ME BRAINLIEST