Kammala jumla mai zuwa: Sojoji daga yankuna daban-daban na Elector Frederick William sun kasance a cikin umarni daban-daban. A shekara ta 1651, mai zaben ya ba Sparr umurni a kan dukan sojojin dakarun da ke waje da Brandenburg da kuma Duchy na Prussia; umurni a kan dukan sojojin Brandenburg-Prussia ya biyo baya a 1655. Sparr ya yi aiki a matsayin Shugaban Ma'aikatan Frederick William lokacin da zaɓaɓɓen ya jagoranci dakarun, kamar a 1656
Yaƙin Warsaw. A ranar karshe ta yakin, "Generalfeldzeugmeister" (Master of Ordnance) von Sparr ya jagoranci nasarar Brandenburg a kan sojojin Poland. An daukaka shi zuwa Field Marshal a 1657.