In five to ten sentences, explain how the feudal system worked. roman empire

Feudalism in the Holy Roman Empire was a politico-economic system of relationships between liege lords and enfeoffed vassals that formed the basis of the social structure within the Holy Roman Empire during the High Middle Ages. In Germany the system is variously referred to Lehnswesen, Feudalwesen or Benefizialwesen. Feudalism in Europe emerged in the Early Middle Ages, based on Roman clientship and the Germanic social hierarchy of lords and retainers. It obliged the feudatory to render persona.