Obviously the great vassals who held directly of the king became almost independent of him as soon as their fiefs were granted to them in perpetuity. Their vassals, since they stood in no feudal relation to the king, escaped the royal control altogether. From the ninth to the thirteenth century the king of France or the king of Germany did not rule over a great realm occupied by subjects who owed him obedience as their lawful sovereign, paid him taxes, and were bound to fight under his banner as the head of the state. As a feudal landlord himself, he had a right to demand fidelity and certain services from those who were his vassals. But the great mass of the people over whom he nominally ruled, whether they belonged to the nobility or not, owed little to the king directly, because they lived upon the lands of other feudal lords more or less independent of him. Enough has been said of the gradual and irregular growth of feudalism to make it clear that complete uniformity in feudal customs could hardly exist within the bounds of even a small kingdom, much less throughout the countries of western Europe. Yet there was a remarkable resemblance between the institutions of France, England, and Germany, so that a description of the chief features of feudalism in France, where it was highly developed, will serve as a key to the general situation in all the countries we are studying. [Sidenote: The fief the central institution of feudalism.] [Sidenote: Homage.] 42. The fief (Latin, _feudum_) was the central institution of feudalism and the one from which it derives its name. In the commonest acceptance of the word, the fief was land, the perpetual use of which was granted by its owner, or holder, to another person, on condition that the one receiving it should become his vassal. The one proposing to become a vassal knelt before the lord and rendered him _homage_[68] by placing his hands between those of the lord and declaring himself the lord's "man" for such and such a fief. Thereupon the lord gave his vassal the kiss of peace and raised him from his kneeling posture. Then the vassal took the oath of fidelity upon the Bible, or some holy relic, solemnly binding himself to fulfill all his duties toward his lord. This act of rendering homage by placing the hands in those of the lord and taking the oath of fidelity was the first and most essential obligation of the vassal and constituted the _feudal bond_. For a vassal to refuse to do homage for his fief when it changed hands, was equivalent to a declaration of revolt and independence. [Sidenote: Obligations of the vassal. Military service.] [Sidenote: Money fiefs.]