The spread of European feudalism grew very fast. From France feudalism spread to the major European countries including Germany, Spain, Italy, Scandinavia, England and the countries that have slaves.
The hierarchy of European Feudalism occurred with peace. A single line that had shaped hierarchy had already developed headed by the king, who was surrounded by nobles. The urge for the great countries of Europe to fight and acquire new lands and territories led to the hierarchy of European feudalism and its main advantage which was that men who were not of noble birth could climb up the Feudalism pyramid of power. If a man proved himself in battle and as a loyal supporter he was rewarded with land, fief, In return for the land the loyal supporter or Vassal would swear an Oath of Fealty and pay homage to his lord or King.
The spread and ultimate effects of European Feudalism had significant effects on society. From European feudalism emerged different forms of constitutional government. New ideas led to the resistance to and defiance of the feudal lord. The rights of the majorities and the development of early representative institutions emerged. These were the powerful effects during the decline of European feudalism.