Likewise, devolving responsibilities was a highly effective way of reducing animosities and tensions. The case of Russia is again instructive, with one local ruler who was singled out to collect taxes and payments being given a generous cut of the proceeds. Not for nothing did Ivan I, Grand Prince of Moscow, become known as “Ivan Kalita”—or Ivan the moneybags: he was in charge of gathering levies and taxes to fill the Mongol treasuries, evidently doing well for himself in the process. The concentration of wealth and power in the hands of trusted figures like Ivan resulted in the emergence of a
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