Whakakiia te kīanga e whai ake nei: I te tau 1806, i te wā o te
I te Pakanga o te Whainga Tuawha, i whakahau a Grawert i tetahi wehenga hiko ka uru ki te Pakanga o Jena. Whai muri i nga Tiriti o Tilsit, i tohua ia hei Kawana-Tianara o Silesia. I tenei tuunga ka taea e Grawert te whakaute i nga rangatira o nga French me Napoleon ano. I tono a ia i muri mai hei rangatira mo te Poari Awhina o Prussian, hei waahanga o Jacques MacDonald's X Corps o te Grande Armee, i uru ki te whakaekenga French o Russia i te tau 1812. I te timatanga o te pakanga i whakahau a Grawert i tana ope i Ekau. I reira ka hinga ia i tana hoiho ka whati i tona waewae, ka akiaki ia ki te whakarere i te whakahau ki a Lieutenant General Ludwig Yorck.