Rubuta ci gaba don wannan sakin layi - A lokacin Yakin Shekaru talatin, Sweden ta ci kusan rabin jihohin Roman Mai Tsarki. Gustav Adolphus ya shirya ya zama sabon Sarkin sarakuna na Romawa Mai Tsarki, yana mulki a kan Scandinavia da kuma jihohin Romawa Mai Tsarki, amma ya mutu a yakin Lützen a shekara ta 1632. Bayan Yaƙin Nördlingen
, Sweden kawai muhimmanci soja shan kashi na yaki, pro-Swedish ji a cikin Jamus jihohi faded. Wadannan lardunan Jamus sun cire kansu daga ikon Sweden daya bayan daya, suna barin Sweden tare da wasu yankuna na arewacin Jamus: Swedish Pomerania, Bremen-Verden da Wismar. Sojojin Sweden sun iya lalata har zuwa 2,000 castles, ƙauyuka 18,000 da garuruwa 1,500 a Jamus, kashi ɗaya bisa uku na dukan garuruwan Jamus.