European Monarchy

noun A female ruler of a grand duchy, a territory or country ruled by a grand duke or grand duchess.

• The grand duchess attended the royal ball with grace and elegance.
• Did you see the grand duchess's stunning gown at the event last night?
• That grand duchess is always dressed to the nines!
• She ruled the social scene like a grand duchess, commanding attention wherever she went.

noun A title of nobility given to a male monarch or a high-ranking nobleman, especially in certain European countries

• The grand duke attended the royal ball with his entourage.
• Did you hear about the grand duke throwing a lavish party at his palace?
• That grand duke is living the high life, always surrounded by luxury.
• In the world of finance, he was considered the grand duke of mergers and acquisitions.