 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.According to Médéric Louis Élie Moreau de Saint-Méry, Chatenoye earned the respect of the officers and the confidence of the settlers everywhere in the course of his long career.