Answer:
To destroy other monarchies and spread the revolution.
What was the French Revolution?
Ok to keep it simple,
France's Louis VI (of the Bourbon family) came to power in 1774.
1) After discovering an empty treasure, he levied high taxes on residents, and only on one group of them. The clergy, the nobility, and the third estate, which included businessmen, merchants, bureaucrats, attorneys, peasants, and craftsmen, made up French society at the time. Citizens of the first two estates were excused from paying any taxes.
2) At that time, the population expansion required more food grains than were being produced, but because production could not keep up with the rate of population growth, bread prices increased.
3) Representatives of the third estate protested the flawed voting process.
They (people of the third estate) established themselves as a National Assembly in 1789, and in 1791 they wrote a constitution that curtailed the monarch's authority and abolished the feudal system of taxation.
Even though he signed the Constitution, the King of England engaged in covert talks with the King of Prussia. The Jacobin Club was one of the political organizations created to further the revolution.
They assaulted the Kings Palace in 1792 and took him captive for a while. Elections were held, and the result was the creation of the Convention assembly. The King was given a death sentence in 1793 and France was proclaimed to be a republic. Then, in subsequent years, political unrest prepared the stage for Napoleon Bonaparte to become a military ruler (1804)
The main legacies of the French Revolution were the concepts of Liberty, Equality, and Fraternity. During the 19th century, they were disseminated from France to other European nations.