Treaty of Paris of 1763 - Traite de Paris de 1763 Traite de Paris de 1763 (Treaty of Paris of 1763) before an exhibition in Quebec City, septembre 22 2014. The Treaty of Paris, also known as the Treaty of 1763, was signed on 10 February 1763 by the kingdoms of Great Britain, France and Spain, with Portugal in agreement, after Britain's victory over France and Spain during the Seven Years' War.