Kammala jumla mai zuwa: Yorck ya shiga rundunar sojojin Prussian a 1772 kuma ya sami mukamin Laftanar a 1777. Bayan shekaru bakwai na sabis, duk da haka, an caje shi saboda rashin biyayya, bayan da ya zargi shugabansa da hanyoyin fashi a lokacin yakin basasa.
Yaƙin Gasar Bavarian. Ya shafe shekara guda a cikin kurkuku na Fort Friedrichsburg a Königsberg, bayan haka Sarki Frederick Mai Girma ya hana shi sake aiki.