First found in Normandy where they were anciently seated at Aigneaux in the diocese of Coutances in Rouen, and were members of the aristocracy of that region. The first of this name on record was Herbert D'Aigneaux who was descended from the Vicomte Caen in the Cotentin. The family gave its name to the parish of Aigneaux. It is assumed that Herbert joined the Duke of Normandy in his conquest of England in 1066 A.D. Sometime before 1074 Herbert sold part of his estates to Bishop Odo of Bayeux, and also purchased other lands from Corbin, his son. The Aigneaux family had a very important barony consisting of many fiefs along the River Lavire for seven miles, together with St.-Contest at Amfreville on the island of Marie. They were the benefactors of many religious establishments.

By 1643 there were only about 300 people in Quebec. Since immigration was slow, early marriage was desperately encouraged amongst the immigrants. The fur trade attracted migrants, both noble and commoner. 15,000 explorers left Montreal in the late 17th and 18th centuries. By 1675, there were 7000 French in Quebec. By the same year the Acadian presence in Nova Scotia, New Brunswick and Prince Edward Island had reached 500. In 1755, 10,000 French Acadians refused to take an oath of allegiance to England and were deported to Louisiana. The French founded Lower Canada, thus becoming one of the two great founding nations of Canada. The distinguished family name D'Aignault has made significant contributions to the culture, arts, sciences and religion of France and New France. Amongst the settlers in North America with this distinguished name D'Aignault were Jean Daignault settled in Quebec in 1665 from Brittany; Claude Denault arrived in Quebec in 1686 from Ile-de-France; Jacques Denault arrived in Quebec in 1740 from Normandy.

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