Old French law

Roughly speaking, the line separating the two areas was the river Loire, from Geneva to the mouth of the Charente, although this was not a firm border between the two categories of law.

"[2] In the tenth and eleventh centuries, as the Carolingians gave way to the Capetians, Frankish law broke up into many different systems, according to the territories, some extremely small, won by princes and prelates.

[3]The coutumes were asserted and enforced under feudalism during the Middle Ages and in the early modern period by the French kings and their vassals, especially in the lands of the Île-de-France, to the exclusion of Roman law.

"[8] "Prior to this, the pays de droit écrit in the south followed pre-Justinian Roman law, based primarily on the Code of Theodosius II (A.D. 438)",[9] as reissued in the Alarician Breviary.

Henry III announced to the States of Blois his intention of resuming this design, and he caused a code of law to be prepared, and Louis XIII followed the same example.