A Boyar was a member of the high-ranking nobility in medieval Russia and some other Slavic countries. They held significant power and influence, often serving as advisors to the ruling monarchs. Boyars owned large estates and were responsible for managing land and resources, which made them important figures in the feudal system. Their status was often hereditary, passed down through generations.
Over time, the role of the Boyar changed, especially with the rise of the Tsardom of Russia. As the central authority grew stronger, the Boyars faced challenges to their power. Eventually, many were stripped of their privileges, leading to a decline in their influence by the 17th century.