A vassal or liege subject is a person regarded as having a mutual obligation to a lord or monarch, in the context of the feudal system in medieval Europe. The obligations often included military support by knights in exchange for certain privileges, usually including land held as a tenant or fief. The term is also applied to similar arrangements in other feudal societies.
The examples and perspective in this article may not represent a worldwide view of the subject. (September 2017)
|Feudal land tenure in England|
In contrast, fealty (fidelitas) was sworn, unconditional loyalty to a monarch.