Vassal
Liege and Vassal
The feudal system was constructed of webs of fealty. The two parties in each oath of fealty were the liege to whom fealty was sworn, and the vassal who swore the fealty. The liege may have been the person to whom the vassal owed the highest priority of allegiance, since multiple oaths of fealty were common historically, and often conflicted -- at least potentially. In times and places where this usage was common, some other term would have to be used for other persons to whom fealty was sword; probably the term was simply lord, as in "Lord of the Manor", "he is my Lord," and so on.
Note that the feudal relationship is not transitive: simply because person X was a vassal to lord Y who was in turn the vassal of Baron Z, does not imply that X is a vassal of Z or that Z is the liege of X.
See also
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