Feudalism was the medieval system of government that characterized Western Europe between the 9th and 15th centuries. Society was organized around manors and a hierarchy consisting of kings, lords, knights, peasants, and serfs. Kings divided their lands into territories governed by lords, who in turn provided military services to the kings. Lords organized their lands into manors to produce agricultural goods through serfs working plots of land. Feudal society was divided into three estates - nobility, clergy, and commoners.