IPA: /ˈdjuːkəl/
KK: /ˈdjuːkəl/
This word describes something that is connected to a duke or a duchy, which is a territory ruled by a duke.
The grand castle was part of the ducal estate, showcasing the wealth of the duke.
Ducal → It is formed from "duc-" (from Latin "dux", meaning leader or duke) and "-al" (meaning pertaining to). The word "ducal" refers to something that pertains to a duke or the rank of a duke.
Think of a duke as a leader ('duc-') and remember that 'ducal' means related to that leader.