ducal
/ˈdjuːkəl/Definitions
1. adjective
relating to or characteristic of a duke or a ducal family or government
“The ducal palace stood tall amidst the rolling hills.”
2. noun
a title of nobility or rank in certain monarchies
“The ducal family ruled over the kingdom for generations.”
3. noun
a person holding a ducal title
“The ducal family member was invited to the royal ball.”