father predecessor successor succession house mother birth_place death_date death_place religion birth_date spouse issue image article_title name reign
wilhelm , duke of saxe-weimar new creation william august johann georg ii johann georg ii duke of saxe-marksuhl duke of saxe-eisenach house of wettin eleonore dorothea of anhalt-dessau weimar 19 september 1686 eckhartshausen , marksuhl lutheranism 12 july 1634 johannetta of sayn-wittgenstein eleonore of saxony frederick august , hereditary duke of saxe-eisenach johann erdmuthe georg ii , duke of saxe-eisenach john william iii , luise duke of saxe-eisenach fredericka elisabeth , duchess of saxe-weissenfels , margravine of brandenburg-ansbach and electress john george i , duke of saxe-eisenach . jpg john george i , duke of saxe-eisenach
 john george i 1662 -- 1686 1671 -- 1686
john george i , duke of saxe-eisenach

johann georg i , duke of saxe-eisenach -lrb- weimar , 12 july 1634 -- hunting accident , eckhartshausen , marksuhl , 19 september 1686 -rrb- .
he was the fifth but third surviving son of wilhelm , duke of saxe-weimar and eleonore dorothea of anhalt-dessau .
after the death of his father -lrb- 1662 -rrb- , his older brother johann ernst ii inherited weimar , and his second brother adolf wilhelm received eisenach .
johann georg received an income from the new duchy of saxe-eisenach and took his residence in the small town of marksuhl .
in 1668 his brother adolf wilhelm died .
his fifth and only surviving son , wilhelm august , was born eight days after his father 's death and became duke from the moment of his birth ; johann george became the regent of the duchy and also the guardian of the new duke .
wilhelm august died in 1671 at only two years of age , and johann georg inherited the duchy .
the next year -lrb- 1672 -rrb- the death without heirs of the duke frederick wilhelm iii of saxe-altenburg forced a new treaty of division of the family lands between johann georg , his surviving brothers and his cousin .
johann georg was confirmed in his possession of eisenach and took some towns , and his younger brother , bernhard , inherited jena .
johann georg thus became the founder of the most recent line of the dukes of saxe-eisenach , who became extinct in 1741 .
he was ruler in 1685 when johann sebastian bach was born in the duchy .
