 Chastenoye was succeeded on 12 August 1748 by Joseph-Hyacinthe de Rigaud de Vaudreuil.On 17 January 1749 Chastenoye wrote to the minister Jean-Frédéric Phélypeaux, Count of Maurepas pointing out the commercial losses of the planters during the recent war and the expense of supplying blacks to work on the defenses, and calling for protection for their trade.His son, Achille Cochart, marquis de Chastenoye, was appointed governor of La Cap on 1 November 1749.