>>507122230First, Ivan the Terrible exterminated a significant part of the boyars during the Oprichnina, then during the Troubles, which lasted a quarter of a century, up to 40-50% of the former elite was destroyed. Objectively, there were no superiors over the peasantry, and the tsar had no commanders of the army formed from the landlords.
In the 1550s - 1663 in the servant nobility of the Moscow kingdom a class group of “servant murzes and princes” was formed by leaving “in the name of the state” by the kingdom, yurts and appanages, and by making their yards into stanits within the servant districts of the center of the Moscow kingdom in the XVI-XVII centuries. In 1807, the author of the work on the origin of the Russian nobility, Prince I.Golitsyn wrote about the first class of the Moscow kingdom: “Tsar Ivan Vasilyevich (Terrible), establishing autocracy, deprived Russian princes of part of their privileges; the title of princes not only gave a great number of nobles, but also a large number of Tatar murzes who came into his subjection”.
V.Sergeevich in the same connection pointed out that “Moscow sovereigns gave special patronage to Lithuanian natives, landless, and also landless Tatar tsareviches”. Moreover, in his polemic with Valuyev he wrote: "Ivan the Terrible put landless Asian tsareviches and tsars above all ancient (Russian) families