Ivan IV attempted to weaken them, the Time of Troubles actually did and  Peter the Great officially abolished this rank. A gr
Ivan IV attempted to weaken them, the Time of Troubles actually did and  Peter the Great officially abolished this rank. A group of this aristocratic  class advised the Grand Prince of Kiev on all important matters of state. FTP,  identify this aristocratic Russian caste which, in medieval Russia, formed the  upper level of society as well as state administration.
Ivan IV attempted to weaken them, the Time of Troubles actually did and  Peter the Great officially abolished this rank.
Boyars