Tuhia he tomokanga mō tēnei wāhanga - I te tīmatanga o ngā Pakanga Napoleon, ko Marcognet tētahi rangatira whānui e tohutohu ana i tētahi piritiata i roto i te rōpū o Marshal o France a Michel Ney. I arahina e ia ana hoia ki Günzburg, Elchingen, me Scharnitz i te tau 1805. I te pakanga 1806-1807, i arahi ia i tana pereti i Jena, Magdeburg, Eylau, Guttstadt-Deppen, me Friedland. Whai muri i te whakawhitinga o te ope a Ney ki Paniora, ka whawhai ia ki Tamames
, Alba de Tormes, Ciudad Rodrigo, Almeida, Bussaco, Torres Vedras, Casal Novo, me Fuentes de Onoro.