Dutchess

Dutchess: noun. A dutchess is the official term for a Dutch duchess. The word dutchess has been rendered largely obsolete following the year 1830, when Belgium and the Netherlands split and the Netherlands retained no duches or dutchesses save the monarch, who is the Duche or Dutchess of Limburg. Thus, the only duche surviving today is Willem-Alexander of the Netherlands, and the only dutchess is his wife, Queen Máxima.