What people of high rank who received land in exchange for their loyalty?

People of high rank who received land in exchange for their loyalty are often referred to as feudal lords or vassals in the context of feudalism. In this system, they were granted land, known as a fief, by a monarch or higher-ranking noble in return for military service and loyalty. This arrangement created a hierarchical structure where loyalty and land ownership were closely intertwined, reinforcing the power dynamics of the time.