>>511177621 (OP) >Herberstein described Russian territory as extending, on the western side, from close to the Carpathian mountains and following the River Tyras or Dniester down to the Black Sea. To the east, beyond the Volga river and towards the north as far as "...the countries in obedience to the King of Sweden and even to Finland..." By the 1530s the principality of Muscovy, centred on the city of Moscow, was emerging as the dominant power in the region. "There are now three princes of the Russians. The first is the Prince of Moscow, lord of most of the realm; the second is the Grand-duke of Lithuania; and the third is the King of Poland."