duken.公爵Duke of York's Own保守治疗Duke of Devonshire德文希尔公爵(英国首相)Duke of Wellington威灵顿公爵(英国首相)Duke of Wellington's保守政权Dukedom of Luxembourg卢森堡,卢森堡大公国DUKE NUKEN TIME TO KILL毁灭公爵Duke University Library公爵大学图书馆Duke University archives杜克大学档案馆Duke University Hospital守恒积分Dukes rank above barons.侯爵的爵位在男爵之上。