The people of western Europe required a source of orderly protection from numerous invaders. As a consequence of this, they devised a system under which members of the upper classes offered protection to members of the lower classes in exchange for their loyalty to them.
Many people who lived in cities fled to the countryside in the hope of greater safety because kings were frequently too weak to repel the invaders. A new social and political Invasion and a weak central government led to the development of the feudal system.
The absence of public authority and the exercise by local lords of administrative and judicial functions formerly (and later) performed by centralized governments were characteristics of the medieval "feudal system," according to scholars in the 17th century. widespread conflict and general disorder.
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