Hi
I believe the Knotel picture is of a fusilier of the Lithuanian Regiments, which made up the 19th – 22nd Regiments of the GDoW. How many made it into the field is another matter. They all are shown in the same uniform. I plan to raise such a unit for my GDoW army, as they look great.
Uniforms of the Lithunian Regiments
The new Lithuanian units the 18th to 22nd Infantry Regiments, were officially required to wear headgear of the same style and pattern as the Duchy of Warsaw troops but may in fact have been equipped with the French style bell topped shako with decorations as for the Duchy troops. (Rawlins pp17)
From Rawlings Army of Duchy of Warsaw there is some info on the Lithuanian Chasseurs. It looks like they were never fully enrolled and the units that were raised wore a grey uniform with French shakos (see below)
"In August, 1812, the Provisional Government of Lithuania sought to create six battalions of ‘Strzelcow Pieszych Litewskich' Chasseurs a Pied with each battalion being composed of six companies of 130 men. The battalions were to be formed from the gamekeepers and forest rangers within the particular property or area from which recruitment was assigned. The duty of the chasseurs was to act as scouts for the region, to abridge Cossack raids, apprehend vagabonds and deserters, and maintain general order. The units were to be composed of volunteers, but as the recruitment was slow the government authorized the enrolment of commoners with the recruits to be armed and dressed at the expense of the local landowners. These battalions were expected to be formed by September, 1812, with the rest of the regular units. In reality it is unlikely that any of the battalions were even fully assembled, organised or trained before the dissolution of the army and the only reference to a uniform suggests that they may have worn French style shakos and a grey coat with green facings.
In November, 1812, the Provisional Government further resolved to create two regiments out of the existing battalions each composed of three battalions in the French pattern, but their formation was only partially successful. One formed company was consolidated into 1st Foot Chasseur Regiment. The principle source of recruitment for the Foot Chasseur Regiments was from the great Radziwill estates in the Department of Minsk. The 3rd Foot Chasseur Regiment was recruited from the large estates in the Department of Vilnius. All soldiers enlisting in the battalions agreed to serve for the duration of the war. Unfortunately due to the lack of manpower and equipment the 4th Battalion was only partially formed as were the other two remaining battalions." (Rawlings pp36)