Being a uniform and flag design service to wargamers and to the imaginary crowned heads of 17th and 18th Century Europe, especially of the Seven Years War period - now By Appointment to the Court of Saxe-Bearstein! (But please note that the uniforms and flags presented here are not fictional - they are genuine 17th and 18th Century uniforms and flags that are as authentic as I can make them from my sources.)
Although some sources suggest the Bavarian grenadiers had plates on their fur caps in the mid-18th century, Martin Lange in Pengel and Hurt's Bavaria, Saxony and Palatinate Supplement argues convincingly that the primary evidence shows they did not. He also argues that all grenadiers had red bags on the cap, with piping in the button colour, and that the bags were therefore not in the uniform facing colour.
Kurbayern was a composite regiment of regular Bavarian infantry; it consisted of the 1st Battalion and Grenadier company of Infantry Regiment Von Holnstein and the 1st and 2nd Battalions and Grenadier company of Infantry Regiment Von Pechmann. Both wore the uniforms of their parent regiments, Pechmann in blue with straw facings and Holnstein with red facings. As this template is not coloured, I can leave the vexed question of the actual shade of blue of Bavarian infantry uniforms to others! Soubise rated this regiment as "good".
The unit was busy in the SYW and was present at Dresden 1759, Meissen 1759, Torgau 1760 and Freiberg 1762, as well as other actions.
The cap of the grenadiers was of brown fur with a green bag piped with yellow lace and a yellow tassel. The plate with its grenade badge was in yellow metal, like the uniform's buttons, but the grenade was white metal.
Rated as "good" by Soubise, Salzburg was raised in the Bishopric of that name and consisted largely of Catholics. The uniform was Austrian-style, in white with red facings. It spent much of the war in the kleine krieg but was in the line of battle at Freiberg in 1762.
Wildenstein was a 4 battalion regiment, rated as "good" by Soubise. The uniform was in the Austrian style, white with green facings and waistcoat. Grenadiers also wore an Austrian-style bearskin.
Both these single battalion regiments may have worn the same Prussian-style uniform, dark blue with red facings, except possibly for the button colour. However, one source suggests that Elberfeld (or Elverfeldt) may have had white facings - collar, lapels, cuffs and turnbacks - with brass buttons (see Kronoskaf for discussion). The above colour template may therefore show the dress of both or only one of the battalions.
They were rated as "good" by Soubise. Both were apparently captured in 1759 while serving against Prince Henry's army.