I am going to attach a statement I found on a website. There are so many legends regarding the early Pelletier family it is hard to know what to believe.This one seemed to have some backing - that Francois did marry a First Nation woman named Dorothee, but she died in childbirth along with the child so those of us descended from Francois would be from his second wife, Marguerite-Madeleine Morrisseau who was allegedly born in Amiens, France.
The following is from the internet:
Middle son of Nicolas Pelletier, François Pelletier, who later bore the second surname Antaya, was an experienced coureur de bois, knowledgeable of Indian languages and skilled in their ways of the forest. As a fur trader, he dealt with Indians from as far east as the Domaine du Roi to as far west as the Great Lakes. He was later Seigneur of the Seigneurie d'Orvilliers and therefore the first landed aristocrat of his family. In November 1659, François accompanied Jesuit priest Charles Albanel on a journey from Québec to the mission-trading post at Tadoussac. While the exact details of their voyage and stay there are unknown, according to the Journal des Jésuites, on 24 April 1660 at Québec, “, arrived from Tadoussac Father Albanel, who, before his departure from Tadoussac, had married a Frenchman named François Pelletier with a Christian Indian woman named Dorothée, without publication of bans or notice given to the parents, the bishop or the governor, which caused a great stir.” François' marriage to Dorothée produced no children* and lasted only a year. In April 1661, she died at the Hôtel-Dieu hospital at Québec, “after having received all the sacraments of the Church,” and her body was buried in the cellar beneath the hospital. *(another source says she died in childbirth -) Later that same year, following his participation in a summer expedition to Hudson Bay, François returned to Sillery and on 26 September 1661 married Marguerite Morisseau, originally from the parish of Saint-Pierre de Roye, diocese of Amiens, in the French province of Picardy. They went on to have ten children. Residing first at Sillery, about 1669, François and his growing family moved some 120 miles up-stream, to the Seigneurie de Saurel today the city of Sorel-Tracy, found at the mouth of the Richelieu River, some twenty-five miles northeast of Montréal. He had received a concession of land there from Seigneur Pierre de Saurel, former captain of the noted Carignan-Salières Regiment, sent to New France in 1665 to quell the Iroquois hostilities. François' connection to Captain de Saurel dated to at least July 1666, when François was among the three hundred French and Indians whom Saurel led on an expedition against the Iroquois who had killed two officers from his regiment and captured four or five others. Likewise, it was François who returned to Québec ahead of the expedition to announce the prisoners' liberation. On 22 October 1675, François and Marguerite purchased the Seigneurie d'Orvilliers later called the Seigneurie d'Antaya, an estate sitting on the north shore of the Saint Lawrence River across from the Seigneurie de Saurel. It measured 11/2 miles along the River by 3 miles inland, and included Haystack Island Île-aux-Foins as well as the islets situated between the Island and terra firma. During the latter third of the seventeenth century, François and Marguerite participated actively in the fur trade. Even after François' death about 1688, Marguerite continued to hire and send trappers west to the Great Lakes to trade with the Indians there. Not all of François Pelletier Antaya and Marguerite Morisseau's children and grandchildren remained in the area of Antaya or Saurel. Some ventured west, to the Great Lakes; others settled along the Upper Mississippi Valley. They married with the native peoples and founded families of their own. They lived as trappers, traders, soldiers, interpreters and guides. Some perpetuated the name Pelletier; others, Antaya.