The siege of Port-au-Prince took place in April 1793 during the Haitian Revolution.
Rebellion of the colonists
On 25 January 1793, the colonists, led by Borel, revolt against the commissioners Sonthonax and Polverel. The royalist "grands blancs" colonists and wealthy slave owners and the "petites blancs", modest or poor, or formerly, Republican colonists, united in their common opposition to mulattoes and free colored people. The colonists armed their slaves, joined forces with the soldiers of the Artois Regiment and made themselves masters of Port-au-Prince. The insurgents then sent a letter to London declaring themselves ready to pass under the suzerainty of the Kingdom of Great Britain in exchange for the conservation of their laws.
Siege
Troops loyal to the commissioners commanded by generals Lassale, a European, and Beauvais, a mulatto, then laid siege to Port-au-Prince. For their part, the representatives Sonthonax and Polverel established their base at the port of Saint-Marc, took command of the navy and attacked from the sea. On 12 April the forces of the commissioners launched a general attack by sea and land. The commissioners' ship was badly damaged by rebel cannons and a fire broke out, but it was extinguished.
Intensely bombarded with 4,000 to 5,000 cannonballs, Port-au-Prince capitulated on 14 April 1793. Borel, the leader of the insurgents, fled to Jamaica, while his slaves were disarmed and returned to their plantations.