Expelling Jews from one’s domain is not only to be understood as a political, economic or religious process: it is also entangled in legal consideration. While the political and institutional power of the Capetian monarchy in France strengthens, jurists actively surround the king and the Curia Romana. This paper aims to show how medieval legal scholars think the questions of expulsion of Jews and seizures of their properties, and especially while analysing the “conceptual reservoir” from which they draw their arguments. This “reservoir” is heavily influenced by Roman law, but also Canon law, and even theology. On the other hand, we will see its practice by looking at the expulsion from the kingdom of France in 1306-1311. We will put a focus on its repercussions in southern France where contestations arise as jurists are divided into supporters of the king of France and local authorities, and legal agreements are found to resolve political disputes.