Saint-Domingue planter delegates joined the founding moment of the French Revolution

Evidence

Granted “provisional” admittance, but denied the right to vote, the planter delegates took advantage of a crisis. The Estates General had traditionally voted by order, which meant that on any issue the aristocracy and the clergy could outvote the Third Estate, even though the latter had twice as many delegates. The members of the Third Estate therefore argued that the voting should take place by head rather than by order. In the face of the royal government’s intransigence, on June 20 most of the members of the Third Estate, along with a few aristocrats and clergy, declared that they were the true representatives of the people of France, naming themselves a National Assembly. … Their presence at this event gained them the sympathy of many of their comrades. — Dubois, Laurent, Avengers of the New World_ The Story of…, 260