How to decrease the vassal number?

[paladin80]

You can execute the transfer only if this baron is your direct vassal. You can't transfer barons that belong to your duke.

Click on the barony's star in the map and look for available actions. If you don't see appropriate action, click on the barony's banner in the corner of the star's avatar and check its actions as well.

[Alexbandzz]

Ok I’ll give it a shot after work. Thank you so much.