 Ramba uchinyora ndima iyi - Nzvimbo yeCommonwealth maererano neDuchy yePrussia yakaramba ichiderera, sezvo simba muDuchy rakanga richitorwa neVasarudzi veBrandenburg. Pasi pevaElectors, Duchy yakanga yava pedyo zvikuru neBrandenburg, iyo yakanga ichikuvadza kufarira kwezvematongerwe enyika kweCommonwealth. Sigismung III akasiya hutungamiri hweDuchy mumaoko aJoachim Frederick, uye ipapo John Sigismund, uyo muna 1611 akawana kodzero yekutevera Hohenzollern muDuchy nemvumo yaMambo neSejm. Iye chaizvoizvo akava Duke wePrussia muna 1618, pashure porufu rwaAlbert Frederick, uye akateverwa naGeorge William uye ipapo Frederick William, uyo muna 1641 muWarsaw kwenguva yokupedzisira akabhadhara mutero wePrussiankuna mambo wePoland. MaDuke eBrandenburg akatevedzana aizoita zvibvumirano zvepamutemo, kugutsa zvinangwa zveCommonwealth uye kururamisa kupiwa kwezvikomborero, asi shanduko isingachinjiki muhukama yakanga ichiitika. 