摘要：In this study, by means more of 46,000 marriages, we measure several parameters of biodemography in 7 parishes of Avignon (France). The city of Popes, in spite its important textile industry, its international trade and its craftsmanship does not present a structure truly as open to influence them external. The population never exceeds more 27,000 persons during 300 years of observation. It characterizes by a reproductive isolation with an average rate of geographical endogamy close to 68.0%. The apparent consanguinity is not negligible: 1.18‰ of common genes. The study of the urban space by suitable parishes emerge from disparities and rupture zones. The biodemographics indices present no homogeneity: the ratios are significant to a parish than an other, 2.5 for the rate of dispentations, 3.5 for the apparent consanguinity and 2.7 for the isonymic consanguinity. This city show a composite structure, a parish mosaic in order that Avignon no longer would be a urban entity but an aggregate of populations.
«Les maisons (de Paris) y sont si hautes qu’on jurerait qu’elles ne sont habitées que par des astrologues. Tu juges bien qu’une ville bâtie en l’air, qui a six ou sept maisons les unes sur les autres, est extrêmement peuplée et que, quand tout le monde est descendu dans la rue, il s’y fait un bel embarras.»
Montesquieu «Lettres persannes» (lettre 24). 1721.
