 The Province of Quebec was founded in the Royal Proclamation of 1763 after the Treaty of Paris formally transferred the French colony of Canada to Britain after the Seven Years' War.The proclamation restricted the province to an area along the banks of the Saint Lawrence River.The Quebec Act of 1774 expanded the territory of the province to include the Great Lakes and the Ohio River Valley and south of Rupert's Land, more or less restoring the borders previously existing under French rule before the Conquest of 1760.