Ramba uchinyora ndima iyi - Muna 1804 Duke Charles Augustus akapinda mune zvematongerwe enyika zveEurope nokuroora mwanakomana wake uye mugari wenhaka Charles Frederick kuna Grand Duchess Maria Pavlovna, hanzvadzi yaMambo Alexander I weRussia. Zvisinei, panguva imwe cheteyo akabatana nePrussia muHondo yeChitatu Yokubatana
Kurwisa Umambo hweFrance, uye pashure pokukundwa muHondo yeJena-Auerstedt yakamanikidzwa kupinda muNapoleonic Confederation yeRhine muna 1806. Muna 1809 Saxe-Weimar neSaxe-Eisenach, idzo dzakanga dzakabatanidzwa chete mumunhu weduke, dzakabatanidzwa zviri pamutemo muDuchy yeSaxe-Weimar-Eisenach.