Joseph-Antoine le Fèbvre, sieur de La Barre was a French lawyer and administrator best known for his disastrous three years as governor of the colony of New France (Quebec).

Alexandre de Prouville de Tracy was a French military leader, statesman, and the seigneur of Tracy-le-Val and Tracy-le-Mont in Picardy, France. A professional soldier, he was a regimental commander during the Thirty Years Wars, and was later appointed commissary general of French forces in Germany. In 1663, he was commissioned lieutenant-général of the French colonies in the Americas. In 1664, he led an expedition that expelled the Dutch from Guiana. The following year he sailed to New France where, in 1666, he led the Carignan-Salieres Regiment and Canadien volunteers in an invasion of the Mohawk homeland. He returned to France after reaching peace settlements with the Mohawk and the other Iroquois nations, and was appointed commandant at Dunkirk, and later governor of the Château Trompette in Bordeaux.