Marc-Nicolas-Louis Pécheux, 28.i.1769 - 1.xi.1831:

50th Division (Pecheux):
6 [5?]battalions: 3e ligne 4 bats; 105e ligne 1 bat;
1 squadron 28e chasseurs a cheval (ca 80 men);
1 foot battery ['legere'].
Total: 4,000 men (80 cavalry) and 8 [6?] guns

"Le 3e de ligne: Le 16 septembre, il est à Göhrde, où il déplore 500 tués ou blessés."

http://www.historisches-bevensen.de/geschichtliches/gefechtandergoehrde.html

Our colleague Rafa's OOB:

http://rafa-pardo-almudi.blogspot.com/2008/09/oob-for-ghrde.html

Our colleague Geert's:

http://home.wanadoo.nl/g.vanuythoven/Cossacks%205.htm

Best detailed account of battle, pp 21-27 of Geschichte des 1. Thüringischen Infanterie-regiments Nr. 31 by Max Gottschalck:

http://books.google.com/books?id=thoQAAAAYAAJ&pg=PA21

and

Historique du 3e régiment d'infanterie, ex-Piémont, 1569-1891 by Marius Bourgue, pp 309-313:

http://books.google.com/books?id=y10aAAAAYAAJ&pg=PA309

Bio Pécheux - Biographie nouvelle des contemporains, Vol 16 (1824), pp 101-102 :

http://books.google.com/books?id=gbxfAAAAIAAJ&pg=RA1-PA101

and

Fastes de la Légion-d'honneur, vol 3, pp 479-480:

http://books.google.com/books?id=KdpkAAAAMAAJ&pg=PA479

Now here it says two (2) of his adc's were made prisoner!