duke energy duke ferdinand duke frederick duke friedrich duke gave duke had duke has duke henry duke it out duke jean duke john duke johnson duke kahanamoku duke leopold duke leto duke needs duke nicholas duke nukem duke nukem forever duke of alba duke of albany duke of anjou duke of aosta duke of aquitaine duke of argyll duke of aumale duke of austria duke of bavaria duke of beaufort duke of bedford duke of berry duke of bohemia duke of bourbon duke of brabant duke of braganza duke of brittany duke of brunswick duke of brunswick-lüneburg duke of buckingham duke of burgundy duke of calabria duke of cambridge duke of clarence duke of cornwall duke of courland duke of cumberland duke of devonshire duke of edinburgh duke of exeter duke of gloucester duke of grafton duke of guise duke of hamilton duke of kent duke of lancaster duke of lithuania duke of lorraine duke of luxembourg duke of mantua duke of marlborough duke of milan duke of monmouth duke of newcastle duke of norfolk duke of normandy duke of northumberland duke of orleans duke of orléans duke of parma duke of portland duke of richmond duke of sandringham duke of savoy duke of saxe-altenburg duke of saxe-coburg duke of saxe-meiningen duke of saxony duke of somerset duke of suffolk duke of sussex duke of sutherland duke of swabia duke of tuscany duke of urbino duke of wellington duke of westminster duke of windsor duke of württemberg duke of york duke otto duke paul duke peter duke power duke red duke robert duke said duke snider duke street duke university