New France
In 1763, France had ceded the rest of New France, except the islands of Saint Pierre and Miquelon, to Great Britain and Spain at the Treaty of Paris, which ended the Seven Years' War (known as the French and Indian War in North America and especially the United States). Britain received Canada, Acadia, and the parts of French Louisiana which lay east of the Mississippi Riverexcept for the Île d'Orléans, which was granted to Spain, along with the territory to the westthe larger portion of Louisiana.
Custom of Paris in New France
In 1663, upon the dissolution of the Company of One Hundred Associates, New France had come under direct rule by the French crown. The Custom was officially introduced in New France by article 33 of the royal charter establishing the French West India Company in May 1664 (the company retained control of the colony for a decade thereafter).