Final Answer:
One of the most important ways the French Revolution demonstrated a legal challenge to the monarchy was when the National Assembly adopted the Declaration of the Rights of Man and of the Citizen.
Step-by-step explanation:
The French Revolution marked a significant legal challenge to the monarchy, and a pivotal moment in this challenge was the adoption of the Declaration of the Rights of Man and of the Citizen by the National Assembly in 1789.
The declaration outlined the fundamental rights and principles that the French citizens deemed inherent and inviolable. It asserted equality, liberty, and fraternity as core values, challenging the traditional absolute authority of the monarchy. The adoption of this document reflected the people's demand for a more just and equitable legal system, promoting individual rights and limiting the arbitrary power of the monarchy.
This legal challenge laid the foundation for the transformation of the French political and legal landscape, contributing to the eventual establishment of a constitutional monarchy and, later, the abolition of the monarchy altogether.
In summary, the adoption of the Declaration of the Rights of Man and of the Citizen by the National Assembly during the French Revolution exemplified a crucial legal challenge to the monarchy, signaling a shift toward principles of equality and individual rights.