Historians have debated the long-term influence of Mongol rule on Rus' society.
The Mongols have been blamed for the destruction of Kievan Rus', the breakup of the ancient Rus' nationality into three components and the introduction of the concept of "oriental despotism" into Russia.
Historians also credit the Mongol regime with an important role in the development of Muscovy as a state.
Under Mongol occupation, for example, Muscovy developed its mestnichestvo hierarchy, postal road network (based on Mongolian ortoo system, known in Russian as "yam", hence the terms yamshchik, Yamskoy Prikaz, etc.),
census, fiscal system and military organization.

The period of Mongol rule over the former Rus' polities included significant cultural and interpersonal contacts between the Slavic and Mongolian ruling classes.
By 1450, the Tatar language had become fashionable in the court of the Grand Prince of Moscow, Vasily II, who was accused of excessive love of the Tatars and their speech, and many Russian noblemen adopted Tatar surnames (for example, a member of the Veliamanov family adopted the Turkic name "Aksak" and his descendants were the Aksakovs) Many Russian boyar (noble) families traced their descent from the Mongols or Tatars, including Veliaminov-Zernov, Godunov, Arseniev, Bakhmetev, Bulgakov (descendants of Bulgak) and Chaadaev (descendants of Genghis Khan's son Chagatai Khan).
In a survey of Russian noble families of the 17th century, over 15% of the Russian noble families had Tatar or Oriental origins.

The Mongols brought about changes in the economic power of states and overall trade.
In the religious sphere, St. Paphnutius of Borovsk was the grandson of a Mongol baskak, or tax collector, while a nephew of Khan Bergai of the Golden Horde converted to Christianity and became known as the monk St. Peter Tsarevich of the Horde.
In the judicial sphere, under Mongol influence capital punishment, which during the times of Kievan Rus' had only been applied to slaves, became widespread, and the use of torture became a regular part of criminal procedure.
Specific punishments introduced in Moscow included beheading for alleged traitors and branding of thieves (with execution for a third arrest).
Historians have debated the long-term influence of Mongol rule on Rus' society. The Mongols have been blamed for the destruction of Kievan Rus', the breakup of the ancient Rus' nationality into three components and the introduction of the concept of "oriental despotism" into Russia. Historians also credit the Mongol regime with an important role in the development of Muscovy as a state. Under Mongol occupation, for example, Muscovy developed its mestnichestvo hierarchy, postal road network (based on Mongolian ortoo system, known in Russian as "yam", hence the terms yamshchik, Yamskoy Prikaz, etc.), census, fiscal system and military organization.
The period of Mongol rule over the former Rus' polities included significant cultural and interpersonal contacts between the Slavic and Mongolian ruling classes. By 1450, the Tatar language had become fashionable in the court of the Grand Prince of Moscow, Vasily II, who was accused of excessive love of the Tatars and their speech, and many Russian noblemen adopted Tatar surnames (for example, a member of the Veliamanov family adopted the Turkic name "Aksak" and his descendants were the Aksakovs) Many Russian boyar (noble) families traced their descent from the Mongols or Tatars, including Veliaminov-Zernov, Godunov, Arseniev, Bakhmetev, Bulgakov (descendants of Bulgak) and Chaadaev (descendants of Genghis Khan's son Chagatai Khan). In a survey of Russian noble families of the 17th century, over 15% of the Russian noble families had Tatar or Oriental origins.
The Mongols brought about changes in the economic power of states and overall trade. In the religious sphere, St. Paphnutius of Borovsk was the grandson of a Mongol baskak, or tax collector, while a nephew of Khan Bergai of the Golden Horde converted to Christianity and became known as the monk St. Peter Tsarevich of the Horde. In the judicial sphere, under Mongol influence capital punishment, which during the times of Kievan Rus' had only been applied to slaves, became widespread, and the use of torture became a regular part of criminal procedure. Specific punishments introduced in Moscow included beheading for alleged traitors and branding of thieves (with execution for a third arrest).
Mongol invasion of Kievan Rus'