Final answer:
The royal family was forced to leave Versailles and move to Paris in October 1789 after the Women's March on Versailles, where Parisian women protested the lack of bread and royal policies.
Step-by-step explanation:
In October of 1789, Parisian women, furious over the scarcity of bread and resentful of the monarchy, marched thirteen miles to Versailles and protested, demanding that the royal family move back to Paris.
In the face of rising tensions and under considerable pressure, King Louis XVI and his family left Versailles, never to return. This event became known as the Women's March on Versailles. They subsequently relocated to Paris, where they would be more accessible to and under the watchful eye of the populace and away from the influence of the aristocracy.
The National Assembly took this opportunity to try and stabilize France's finances and seized the lands of the Catholic Church, declaring these lands belonged to the nation, aiming to sell them to improve the economy.