Feudal Subjects were a part of the feudal system, which was a form of government in Medieval Europe. SERFS (5 letters) were the lowest class of people in the feudal system and were bound to the land they worked on. They had few rights and were obligated to provide labor and services to their lord. Lieges (6 letters) were the higher class of people in the feudal system and were obligated to provide military service to their lord. They also had certain rights and privileges that SERFS did not have.