Maybe add 5th Infantry Regiment from the Freien-Stadt Danzig?
Spoiler
(https://i.pinimg.com/originals/16/c8/b9/16c8b9847f6f7e940d125ab348fd7f04.jpg)
(https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/5th_Infantry_Regiment_of_Duchy_of_Warsaw.jpg/1200px-5th_Infantry_Regiment_of_Duchy_of_Warsaw.jpg)
(https://www.fsegames.eu/forum/proxy.php?request=http%3A%2F%2Fwww.napolun.com%2Fmirror%2Fnapoleonistyka.atspace.com%2Fimg%2Funiforms_of_infantry_of_Duchy_of_Warsaw.jpg&hash=891ce7e8dc1d2ce460befbda1c9cb69fcbfa1366)