UDC 572 The Russian North-West is an area where significant changes in the ethnic composition of the population took place at the beginning of the second millennium AD. As a rule, early series of skulls (XI - first half of the XIII century) are distinguished by a dolichocranial brain box, sharp facial profiling. In anthropological materials from burial grounds dated in a wide range, the lower time limit of which is XI-XII centuries, it was possible to distinguish two chronological sections:XI-first half of the XIII century and XIII-XIV centuries. In later samples, the cranial index increases, the height of the skull and the angle of the nose protrusion decreases, and the orbits become narrower. Series of skulls from burial grounds of the XIII-XVI centuries are mixed. A complex of interrelated features, distinguished by high correlation coefficients, indicates the participation of two components in the composition of the anthropological characteristics of this population. As a result of intra-and inter-group analyses, a complex of features with a high separating effect was found: the width of the orbit, the height of the nose, and the angle of protrusion of the nasal bones, varying in one direction. This complex contrasts the early and late Novgorod groups, as well as the Baltic and Finnish ones, respectively. At the intergroup level, the difference between the early (XI-XIII centuries) and late (late XIII - early XX centuries) was expressed in the fact that the former are similar in mass to the bolts of the X-XVIII centuries, and the latter - with different groups of Finns of the same time. Keywords: Russian Northwest, Middle Ages, ethnogenesis, craniometry, Slavs, Finns, Balts, diachronic trend. Introduction The Russian North-West is an area where significant changes in the ethnic composition of the population took place at the beginning of the second millennium AD. Complex ethno-and racogenetic processes were associated with Slavic colonization, the involvement of ... Read more