grand ducal
Of, pertaining to, or characteristic of a grand duke or duchess, his or her family, a…Of, pertaining to, or characteristic of a grand duke or duchess, his or her family, a grand dukedom, or grand duchy.
/ˌɡɹænd ˈdjukəl/
Meaning
1 senses(not comparable)Of, pertaining to, or characteristic of a grand duke or duchess, his or her family, a grand dukedom, or grand duchy.