League Of Augsburg - Fighting Talk

did the saxon infantry battalion's in 1813 have internal grenadier and voltigeur companies or were these detached from their parent regiments.

Mark,

Neither nor

The Saxon Regimental structure saw 10 companies in two Battalions.
8 Musketeer companies and two Grenadier companies. The Grenadiers became a permanent formation 1810. Even in 1813 when only Battalions formed by remnants of the Regiments were grouped in Brigades they kept up this structure.
According to Jörg Titze and his Series about the Saxon Army the Saxon Musketeers formed socalled Regiments Schuetzen. They were 11 men of each Musketeer Company to form some Skirmisher Screen in front of the Musketeer Battalions. It have been this Schuetzen which were used to form 1809 the first Light Infantry Battalions of the Saxon Army. 1810 they formed the 1st and 2nd Light Infantry Regiments.
In Jörg Titze's writings is noted that after the formation of the Light Infantry Regiments the Order still stood to have Regiments Schuetzen and so the kept on using them.

I hope that helps,
Günter

many thanks for your help gunter.