Abstract
Taking up again the question of the right of exile in ducal Normandy and the " capacity of Norman society in the 11th century to produce individuals and groups who detach themselves from the whole " (David Bates), the lecture now sets out to test the following hypothesis : the relative robustness of domination in medieval societies resides less in the constraining compactness of the framing of men than in their capacity to extract themselves from it. Using the example of the Latin East, considered as a colonia nova Christianitatis (Guibert de Nogent), but also thinking about medieval logics ofexceptio, we attempt to revisit the question of the political and spatial consistency of communities of inhabitants - always taking seriously, as the work directed by Joseph Morsel invites us to do, the " fait d'habiter ". And to test the capacity of medieval populations to flee the community in order to form a commune once again.