 A duke thus outranks all other holders of titles of nobility (marquess, earl, viscount and baron).The wife of a duke is known as a duchess, which is also the title of a woman who holds a dukedom in her own right, referred to as a duchess "suo jure"; her husband, however, does not receive any title.In the order of precedence in the United Kingdom, non-royal dukes without state offices or positions generally take precedence before all other nobility, in order of date of creation, but after royalty and certain officers of state.