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.
Law of France
It fixes the hierarchy of laws and rules within the French legal system and the relationship between these different norms.
Constitutional law became independent from political science and administrative law with the Constitution of 1958 which included the institution of a constitutional court, the "Conseil Constitutionnel".