subjugator

from WordNet (r) 3.0 (2006)
subjugator
    n 1: a conqueror who defeats and enslaves
    
from The Collaborative International Dictionary of English v.0.48
Subjugator \Sub"ju*ga`tor\, n. [L.]
   One who subjugates; a conqueror.
   [1913 Webster]
    

grant@antiflux.org