French Constitution of 1791
The short-lived French Constitution of 1791 was the first written constitution in France, created after the collapse of the absolute monarchy of the Ancien Régime. One of the basic precepts of the revolution was adopting constitutionality and establishing popular sovereignty.
French people
During the "Ancien Régime" (before the 1789 French revolution), "jus soli" (or "right of territory") was predominant. Feudal law recognized personal allegeance to the sovereign, but the subjects of the sovereign were defined by their birthland. According to the 3 September 1791 Constitution, those who are born in France from a foreign father and have fixed their residency in France, or those who, after being born in foreign country from a French father, have come to France and have sworn their civil oath, become French citizens. Because of the war, distrust toward foreigners led to the obligation on the part of this last category to swear a civil oath in order to gain French nationality.