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‪The diasporic dimension of Jewish history involves the deterritorialization of the Jewish people. This study considers how the historian may think of the deterritorialization and reterritorialization of medieval Jews in terms of political subjection, spatial anchoring and submission to the halachic norm. The first part of the analysis is devoted to the apparent paradox which makes the Jews a deterritorialized people but whose individuals constitute communities rooted in the territory. Next, it focuses on Jewish law as a deterritorialized and universal tool of sovereignty and therefore as a center of Jewish life. Finally, the case of Narbonne allows us to consider the question of the re-territorialization of medieval Jews in the Diaspora.‪