Whakaotihia te rerenga e whai ake nei: Ko Knobelsdorff, i te timatanga he rangatira hoiho, i whakawhiwhia ki nga tohu i roto i nga Pakanga o Silesian a ko ia te rangatira o nga ope hiko "Brunswick-Bevern" me "von Schwarz". I te tau 1776 i whakawhiwhia ia ki te Inhaber o te roopu hoia "Stojentin", i tu ki Stendal. I roto i te Pakanga o te Bavarian Succession i wehewehe ia ia ano hei rangatira pirihimana i roto i te ope o Prince Henry. I te pakanga ki a Holland i te tau 1787, i arahina e ia te wehenga ki te parirau maui. Ko te rangatira ope taua wa ko Ferdinand, Duke o Brunswick. I te pakarutanga o
I te pakanga ki a France i te tau 1792, i noho ia ki Stendal, i te wa i uru atu ai tana rerenga ki te roopu o te Duke o Brunswick. Heoi, i te kino haere o te ahuatanga o te pakanga, ka mate te Duke, ka wehe atu i nga ope whakakotahitanga i te Poutu-te-rangi 1793; I riro a Knobelsdorff hei rangatira nui mo nga hoia Prussian. I te raumati o te tau 1793 i whakatairangahia a Knobelsdorff ki te General of the Infantry a i whakawhiwhia ki a ia he whakamoemiti motuhake na te kingi. He manuhiri pinepine o muri mai, i whakatairangahia te rangatira tawhito ki te Generalfeldmarschall i te tau 1798 ka uru tonu ki nga mahi i Potsdam i te tau 1799.