Dee ihe ga-eso paragraf a - N'afọ 1806, n'oge Agha nke Anọ
N'afọ 1917, Grawert duziri otu ndị agha na-aga agha ma sonye na Agha Jena. Mgbe Nkwekọrịta nke Tilsit gasịrị, a họpụtara ya Gọvanọ-General nke Silesia. N'ọnọdụ a, Grawert jisiri ike nweta nkwanye ùgwù nke ndị ọchịagha France na nke Napoleon n'onwe ya. Nke a mechara rịọ ya ka ọ bụrụ onye isi nke ndị agha Prussian Auxiliary Corps nke, dịka akụkụ nke Jacques MacDonald's X Corps nke Grande Armee, sonyere na mbuso agha France nke Russia na 1812. Na mbido agha ahụ, Grawert duziri ndị agha ya n'Ekau. N'ebe ahụ, o si n'ịnyịnya ya daa ma gbajie ụkwụ ya, nke mere ka ọ hapụrụ Ọchịagha Ludwig Yorck ọrụ ya.