There is a discussion running over a couple of threads on TMP about the Erzherzog Karl/Archduke Charles legions of 1800 and 1809, which were raised in Bohemia and Moravia (now the Czech Republic) in 1800 and 1809. It is a complex subject as the two formations get confused and mixed up with 1809 Landwehr (conscripted militia). I must admit to getting some of it wrong in Osprey MAA299 (but it was 30 years ago and more material is much more accessible now!).
One source employed for the 1809 Legion (6 Bohemian and 3 Moravian volunteer battalions) is the Heer and Tradition plate from 1966:
One poster says: "Heer und Tradition have this uniform plate which confirms Enrico Acerbi's version" - well, no, Acerbi, who has been writing quite a lot on the army in recent years, has taken his information from the H&T plate and that does not confirm the accuracy of either. This plate is by Herbert Knotel, (Knotel the Younger), best known for illustrating Elting's 'Napoleon's Uniforms', originally in the years after WW2.
The best-known plate of the 1800 Legion (22 battalions and one Jaeger battalion of militia) is by Richard Knotel in his Uniformenkunde series in the 1890s. It was a kind of subscription set of plates and would be accompanied by requests to his subscribers for information.
Neither Knotel gives his sources, but Herbert Knotel is well-known to have used the famous 1895 work by Ottenfeld & Teuber 'Die Oesterreichische Armee'. Richard's subscribers also recommended material from the same work. It is possible to see the Ottenfeld references (from the Hathitrust digital copy https://babel.hathitrust.org/cgi/pt?id=mdp.39015024521240&seq=175&q1=Landwehr):
Aside from the central figure of the Prague Student in the Herbert Knotel plate, those figures are all copied from Ottenfeld, which is described as a coffee-table book as it has no sources. However, Knotel has introduced some slight changes and copied known errors in Ottenfeld: The Vienna Volunteer/Freiwillige has acquired the greatcoat of the Lower Austria Landwehrman shown in the colour plate. This is fair enough as only the 1st Vienna Volunteer battalion had line infantry uniforms and the rest had the Landwehr greatcoat ('Die Landwehr Anno Neun' by von Ravelsberg (1909) and 'Karger, Johann. Entwicklung der Adjustierung, Rüstung und Bewaffnung der Österreichisch-ungarischen Armee von 1700 bis 1809. (1903)). However, the Moravian Landwehrman in the b/w has become a Volunteer/Freiwillige. The key error is that the Freiwillige wore pointed plain red facings on the cuffs and colour to show their volunteer status. The Lower Austrian Landwehr officially wore rounded red cuffs and collars, but Bohemia/Moravia was officially light blue.
That will do for now - next, a trip through the 1800 Legion and back to 1809.
Amazing what turns up when you look. This illustration comes from a patriotic book with the relevant proclamations, but no uniform details published in late 1800:
'Legion Erzherzog Karl. Ein Denkmal der Liebe und Treue für Fürst und Vaterland' (https://www.google.co.uk/books/edition/Legion_Erzherzog_Karl_Ein_Denkmal_der_Li/ZRRkAAAAcAAJ?hl=en)
This work includes a proclamation stating that the militia will be led by officers and NCOs drawn 50/50 from Army officers/NCOs and local worthies, a practice repeated in the 1809 Landwehr.
Then from 1883 comes 'Kronprinzenwerk; Die österreichisch-ungarische Monarchie in Wort und Bild' a 24 volume collection covering pretty much everything, the publishers of which included Crown Prince Rudolph, who would infamously commit suicide at Mayerling with his mistress, baroness Mary Vetsera, in 1889.
Looking very similar to Duller's illustration, this drawing was based on contemporary illustrations in the Kriegsarchiv in Vienna. The tunic lace is somewhat shorter than illustrations show an appears to be a double line in a kind of Hussar style.
So, there is the Prague Student Battalion and for both the Student Battalion and the Bohemian Landwehr, what is all the jacket lace when the Empire was skint in 1809? This contemporary illustration shows the Bohemian Landwehr in a variety of headgear and greatcoats:
Richard Knotel's plate of the 1800 Legion gives a few clues: the jackets there have 7 or 8 rows of long straight lace. In Naše zlatá matička, 1923. - Řezníček, Václav pp.123-4, is a description given in 1809 by a lawyer named Antonín Mudroch, a member of the 1800 student battalion of the 1800 Legion: " Brown tailcoats with red and white epaulettes on the shoulders and six rows of cords on the chest, blue breeches, high boots, black caps with white rooster feathers on their heads and sabres at their sides! ... The legionnaires had no rank among themselves, they were all the same. They differed from the other volunteers in that they wore epaulettes of silver and red silk on their shoulders and instead of a leather strap on their sabre, they had a belt of black and white silk. We obtained our uniform from the clothing commission for 4 zl 30 kr. (https://www.primaplana.cz/news/akademicka-legie1/)
The excellent Primaplana,cz site also includes an article by Vaclav Meřička on the 1800 Legion with an illustration of the 15th Battalion (https://www.primaplana.cz/news/arcivevoda-karel-cesko-moravsko-slezska-legie-roku-1800-a-jeji-prapory/) :
Mericka thinks it is contemporary, although that is not certain. However, it is obvious whether the officer in Knotel's plate gets his hat from. The jacket lace is much shorter across the tunic and the cuffs are in the Hungarian style, being pointed with a lace decoration.
There is another illustration, which is in Duller: 'Erzherzog Karl' (1847)
Most of the pictures in Duller are line drawing renderings of contemporary paintings, so this may be a version of an earlier painting. The tunic lace is clearly wider and probably red, as are the plain rounded German-style cuffs. There is no decoration on the top hat aside from the feather plume, which is now shorter. This picture is copied into Gilbert Anger's book 'Illustrirte Geschichte der kk Armee' (Vienna, 1887) on p. 1172 (2nd Volume), which is accompanied by coloured plate No. XXXI, attached to the first volume. (https://www.primaplana.cz/news/arcivevoda-karel-cesko-moravsko-slezska-legie-roku-1800-a-jeji-prapory/
Anger has now changed the tunic lace into double lines, almost resembling the loops on hussar uniforms, while the turnbacks are only edged in red facing colour, rather than being fully blocked in. The cuffs are pointed, but there is again no Hungarian-style lace. These lace lines then open out into the open style of Ottenfeld in the b/w. Then, there is the error, which grows through the 19th century of rendering hechtgrau (pike grey - a mid-blue) used by Jaegers as Hungarian cornflower blue, so the trousers appear to be Hungarian without the knots. The hat has also acquired some decoration - a band of white/red/white and an EK symbol. Richard Knotel also adds them in.
For 1809, both Ottenfeld and Herbert Knotel leave them off, but there is an illustration from 1810 in the Eder Plates (helpfully added by Markus Stein on our sister site, napoleon-online,de - https://www.napoleon-series.org/images/military/organization/Eder/Eder10b.jpg)
Eder's plates are idealised to some extent, but they are contemporary and do show the reality to a large extent. The three figures on the right and the seated drummer to the far left are from the Prague City battalion of the Bohemian Landwehr, which was at Wagram, but not engaged. The shakos have the coloured band (yellow for NCOs and gold for officers) and an LW symbol in place of EK, The officer has no waistsash, just the swordbelt, and the men are in long greatcoats with white linen trousers and gaiters. The facings are green, possibly like the steel green of the local IR47 regular regiment, with round, plain German cuffs.
To the left are a Feldwebel (sergeant-major) and Korporal (sergeant/corporal) of the "Student Corps' with a private with his back to us and an officer in the centre. The officer has pointed cuffs and the NCOs have rounded cuffs, all with Hungarian-style decoration. These troops are using green facings and that is the correct colour (Sea Green, the facings of IRs 21 and 25, which recruited in Bohemia). Probably quoting from JŮN, Libor. Pro rege et patria. Akademická legie Karlo-Ferdinandovy university v období tzv. koaličních válek. (1998, No.20, Chapter 4, pp. 24-28), Jan Vogeltanz writes: "In 1809, an academic corps was again established as part of the formation of the Landwehr . It consisted of two hundred students of the Karl Ferdinand University, but no longer volunteers, but young men drawn by lot according to conscription lists, whose " temporary exemption " did not apply to Landwehr service. This academic formation of two hundred, designated as the Archduke Ferdinand Corps Division, was incorporated into the 1st Prague City Landwehr Battalion" (https://www.primaplana.cz/news/akademicka-legie1/ These troops have acquired bicornes, but they otherwise resemble the 1800 Legion 1st/Leib Battalion, also drawn from the Karl Ferdinand University in Prague.
Time for another break and a third comment!