. ▁W allen stein ▁with d rew ▁to ▁winter ▁qu arters ▁in ▁Boh emia . ▁ ▁In ▁the ▁campaign ing ▁of ▁ 1 6 3 3 , ▁W allen stein ' s ▁apparent ▁unw illing ness ▁to ▁attack ▁the ▁enemy ▁caused ▁much ▁concern ▁in ▁Vienna ▁and ▁in ▁Spain . ▁At ▁this ▁time ▁the ▁dimensions ▁of ▁the ▁war ▁had ▁grown ▁more ▁European , ▁and ▁W allen stein ▁had ▁begun ▁prepar ing ▁to ▁desert ▁the ▁Emperor . ▁He ▁expressed ▁anger ▁at ▁Ferdinand ' s ▁ref us al ▁to ▁re voke ▁the ▁Ed ict ▁of ▁Rest itution . ▁Historic ▁records ▁tell ▁little ▁about ▁his ▁secret ▁negoti ations ▁but ▁some ▁sources ▁ ▁indicated ▁he ▁was ▁prepar ing ▁to ▁force ▁a ▁" just ▁peace " ▁on ▁the ▁Emperor ▁" in ▁the ▁interests ▁of ▁un ited ▁Germany ". ▁With ▁this ▁apparent ▁" plan " ▁he ▁entered ▁into ▁negoti ations ▁with ▁Sax ony , ▁Brandenburg , ▁Sweden , ▁and ▁France . ▁Appar ently ▁the ▁H abs burg s ' ▁enemies ▁tried ▁to ▁draw ▁him ▁to ▁their ▁side . ▁In ▁any ▁case , ▁he ▁gained ▁little ▁support . ▁An x ious ▁to ▁make ▁his ▁power ▁felt , ▁he ▁res umed ▁the ▁off ensive ▁against ▁the ▁Sw edes ▁and ▁Sax ons , ▁winning ▁his ▁last ▁victory ▁at ▁Stein au ▁on ▁the ▁O der ▁in ▁October . ▁He ▁then ▁res umed ▁negoti ations . ▁ ▁Ass ass ination ▁ ▁In ▁December ▁W allen stein ▁retired ▁with ▁his ▁army ▁to ▁Boh emia , ▁around ▁P ils en ▁( now ▁Pl ze ň ). ▁Vienna