He might be able to strip the title of any unentailed property and leave that to someone else. But the title and the entailed property do not belong to the duke (or other peer), but are held in trust for his descendants.
I made a thing, for those of you who wonder about titles. Those of you who already know, tell me if you see any errors!
Except for those few rare women who inherited a title in their own right, or those with a courtesy title who married “down”, women took their husband’s title as well as his name.
Please feel free to download and share the images:
Titles for men: https://judeknightauthor.com/wp-content/uploads/2022/11/1-1.png
Titles for women: https://judeknightauthor.com/wp-content/uploads/2022/11/2-1.png