Ku qor sii wadida faqradan - Ascanian line ee Saxe-Wittenberg wuxuu baabi'iyey geerida Elector Albert III sanadkii 1422, ka dib markii Emperor Sigismund uu siiyay dalka iyo mudnaanta doorashada Margrave Frederick IV ee Meissen, oo ahaa taageere daacad u ah dagaallada Hussite
Waxaad Marxuumka Albert qaraabadiisa Ascanian, Duke Eric V ee Saxe-Lauenburg ayaa si aan macquul ahayn uga soo horjeestay. Frederick, oo ka mid ahaa toddobadii Amiir ee doortay, wuxuu xubin ka ahaa Guriga Wettin, oo tan iyo 1089 xukumayey Margravate-ka Meissen ee ku xiga wabiga Elbe - oo la aasaasay boqorkii Otto I 965 - iyo sidoo kale Landgravate-ka Thuringia tan iyo 1242. Sidaa darteed, 1423, Saxe-Wittenberg, Margravate of Meissen iyo Thuringia waxay ku midoobeen hal taliye, waxayna u noqdeen dhul mideysan oo si tartiib tartiib ah loogu yaqaanay, "Upper Saxony".