First raised 1684, La Marche was a single battalion regiment and at Minden formed a brigade on the right wing with the 4 battalion regiment Picardie. It was highly distinguished in its conduct at Krefeld where alone it tried to stop the Allied flanking attack and for almost three hours delayed the Allied assault.
The same pattern of colours was carried from 1684 to 1762, when the regiment was disbanded.
Unfortunately I have no 1757 illustration of these flags and the uniform. Basically the regiment had red cuffs, collar and waistcoat; until 1761 the coat had elaborate double vertical pockets.
[I can't help feeling that this is one flag where the usual French elegance fails; the colours make a horribly ugly and messy mix!]