A French nobleman, he was appointed to govern the colonies of New France, which included Canada, Acadia and Louisiana.
Prior to the establishment of the 1663 Sovereign Council, the highest positions in New France were that of Governor and Lieutenant-General, which were often held by the same person.
With the new royal administration of 1663, the title of governor general was given to the person responsible for the military and diplomatic relations.
The duties of administration of justice, police and finance were given to the Intendant, who presided over the Sovereign Council.
Beginning with Charles de Montmagny, First Nations referred to the Governor as Onontio, meaning 'Great Mountain'.