Among the barrows attributed to the local Slavic population in the area of the left bank of the Upper Oka and right bank of the Upper Desna are barrows where the burial rites differ from the local inhabitants’. Different types of burials, a man’s burial with weapon and a horse, a horse’s burial, a horse’s burial with a man’s or animal’s cremation, a man’s burial with weapons, a man’s burial with a bird’s burial, a man’s burial under a rectangular stone barrow, were typical burial customs of Baltic and Finno-Ugric inhabitants in the 11th to 13th centuries AD.