The authors characterize the pattern of historical and cultural processes in the western part of Western Siberia in terms of the Magyars origins issue. The article criticizes the primordialistic concept of the connection of their ancestral home with the Sargat forest-steppe culture of the early Iron Age. According to the analysis of the material culture of the late 3rd–8th century AD based on the Bakal, Potchevash and Karym sites and the fixation of the enclaves of the early Turks, a conclusion is drawn about the polyethnic nature of the population, its high dynamics of settling and contacts. It seems promising to consider several cultures of the early Middle Ages with regard to the fact of the exodus of the “Seven Magyars” political union supporting V.A. Ivanov’s point of view. The task of the next research is to compare the sites of the 6th–8th centuries of the Bakal culture in the forest-steppe Tobol River region, the Potchevash culture of the forest-steppe and the Irtysh taiga, and the Karayakupovo culture of the Southern Urals to verify the hypothesis of the relatively rapid formation of the Ancient Magyar under the influence of foreign policy factors.