Source : Webster's Revised Unabridged Dictionary (1913)

Feudatory \Feu"da*to*ry\, n.; pl. {Feudatories}.
   A tenant or vassal who held his lands of a superior on
   condition of feudal service; the tenant of a feud or fief.

         The grantee . . . was styled the feudatory or vassal.
                                                  --Blackstone.

         [He] had for feudatories great princes.  --J. H.
                                                  Newman.

Source : WordNet®

feudatory
     adj 1: of or pertaining to the relation of a feudal vassal to his
            lord; "a feudatory relationship"
     2: owing feudal allegiance to or being subject to a sovereign;
        "it remained feudatory to India until 1365"
     n : a person holding a fief [syn: {vassal}, {liege}, {liegeman},
          {liege subject}]