Ka cika wannan magana: Sa'ad da Sarki Gustavus ya mutu a watan Nuwamba na shekara ta 1632, 'yarsa Christina wadda ita kaɗai ce ta tsira, tana da kusan shekara shida. Har zuwa lokacin da ta bayyana mafi rinjaye a shekara 18, majalisa ta mulki Sweden. Wannan majalisa ta kasance karkashin jagorancin Lord High Chancellor Oxenstierna, wanda ya rubuta Instrument of Government (1634), sabon tsarin mulki. A cikin shekarun da suka biyo bayan mutuwar sarkin, ya bayyana sarai cewa akwai rashin jituwa a cikin majalisa. Wasu daga cikin abokan aikin Oxenstierna sun ba da shawarar cewa Sweden ta nemi zaman lafiya kuma ta janye daga yaƙin a Jamus, musamman bayan shan kashi a
Nördlingen a shekara ta 1634. Duk da haka, ra'ayin Oxenstierna, cewa Sweden ya kamata ya kasance a cikin yaki don tabbatar da diyya ga sadaukar da aka yi, ya ci gaba. Sakamakon bala'i, ga bangaren Sweden, a Nördlingen ya kawo shi, na ɗan lokaci, zuwa bakin halaka kuma ya tilasta shi a karo na farko ya yi nesa da manufofinsa na 'yancin kai har ya nemi taimakon kai tsaye daga Faransa. Amma, da sanin cewa Richelieu yana buƙatar sojojin Sweden kamar yadda shi kansa yake buƙatar kuɗi, ya ƙi a taron Compiègne a 1635 don ɗaure hannayensa a nan gaba don ɗan sauƙi na yanzu. A cikin 1636, duk da haka, ya kulla sabon yarjejeniyar tallafi tare da Faransa a Wismar. Sojojin Sweden sun kasance a Jamus har zuwa 1648 da ƙarshen Yakin Shekaru talatin. Oxenstierna, duk da haka, ya bar Jamus kuma ya koma Stockholm a shekara ta 1636, bayan shekaru goma a matsayin babban wakilin Sweden a Prussia da Jamus.