Fief-rent

Fief-rent was an amount of money (either in cash or kind) owed by a fiefholder to his liege lord, generally either a percentage of the total production or a flat amount.

This is not to be confused with leal service, which often took the form of specific duties to be performed.

Taxes are similar, but slightly different. In particular, the fief-rent was a part of the personal feudal relationship between vassal and suzerain and usually specifically spelled out in the terms of fealty; taxes were paid by persons not in a direct relationship with a lord.