On 31 December 1779 he married Marie Thérèse Sophie Chappotin (born 1757) in Port-au-Prince, Saint-Domingue.
[1] He owned shares in a sugar company in Terrier-Rouge and several coffee plantations in the Western Province.
[4] Vincent succeeded César Henri, comte de La Luzerne in November 1787, as acting governor.
[7] One of the problems Vincent and Marbois had to handle was the extreme cruelty that the planter Lejeune inflicted on his slaves, in violation of the laws of Saint-Domingue.
He tolerated the sedition of Jean-Jacques Bacon de la Chevalerie, but dissolved the insurrectionist Assembly of Saint-Marc, or Léopardins, in 1790.