Throughout the early Middle Ages, the Rurikid knyazes of the Kievan Rus' used unique symbols to denote property rights over various items. They are depicted on punches, seals, and coins of the Rurikids. In contrast to Western European heraldry, where coats of arms belonged to entire families, or were inherited without changes by firstborn sons, Rurikid symbols were personal, with every knyaz devising an emblem of their own for themselves.