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Social, economical and political system of Medieval Europe and in similar way in China and Japan. The system consisted of complex network of relations between nobility, making them lords and vassals of one another, and requiring serfdom from peasants.

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Perhaps you're talking about Rollo, while swearing feudal allegiance to the King Charles II of France with the Treaty of Saint-Clair-sur-Epte (911): "According to legend, when required to kiss the f …
answered Feb 12 '13 by Nathan Cooper