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.