The chief object, however, of the register was to show not what the count owed to others but what his own numerous vassals owed to him. It appears that he subinfeudated his lands and his various sources of income to no less than two thousand vassal knights. The purpose of the register is to record the terms upon which each of these knights held his fief. Some simply rendered the count homage, some agreed to serve him in war for a certain length of time each year, others to guard his castle for specified periods. A considerable number of the vassals of the count held lands of other lords, there being nothing to prevent a subvassal from accepting a fief directly from the king, or from any other neighboring noble landholder. So it happened that several of the vassals of the counts of Champagne held of the same persons of whom the count himself held. [Sidenote: The infeudation of other things than land.] It is evident that the counts of Champagne were not contented with the number of vassals that they secured by subinfeudating their land. The same homage might be rendered for a fixed income, or for a certain number of bushels of oats to be delivered each year by the lord, as for the use of land. So money, houses, wheat, oats, wine, chickens, were infeudated, and even half the bees which might be found in a particular forest. It would seem to us the simpler way to have hired soldiers outright, but in the thirteenth century the traditions of feudalism were so strong that it seemed natural to make vassals of those whose aid was desired. The mere promise of a money payment would not have been considered sufficiently binding. The feudal bond of homage served to make the contract firmer than it would otherwise have been. [Illustration: The arrow indicates a lord of whom the vassal held one or more fiefs.] It is clear, then, that no such regular hierarchy existed as some historians have imagined, beginning with the king and ending with the humblest knight included in the feudal aristocracy. The fact that vassals often held of a number of different lords made the feudal relations infinitely complex. The diagram on page 115, while it may not exactly correspond to the situation at any given moment, will serve to illustrate this complexity. [Sidenote: The feudal system maintained only by force.]