Ernest Augustus I, Duke of Saxe-Weimar-Eisenach

Ernest Augustus I, Duke of Saxe-Weimar (German: Ernst August I; 19 April 1688 – 19 January 1748) was a duke of Saxe-Weimar. In 1741, he became the duke of Saxe-Weimar-Eisenach.

Ernest Augustus I
Ernst August I., Herzog von Sachsen-Weimar-Eisenach.jpg
Duke of Saxe-Weimar
1707–1748
PredecessorWilhelm Ernst with John Ernst III
SuccessorErnest Augustus II
Co-rulerWilhelm Ernst
Duke of Saxe-Eisenach
1741–1748
PredecessorWilhelm Heinrich
SuccessorErnest Augustus II
Born(1688-04-19)19 April 1688
Weimar
Died19 January 1748(1748-01-19) (aged 59)
Eisenach
SpouseEleonore Wilhelmine of Anhalt-Köthen
Sophie Charlotte of Brandenburg-Bayreuth
IssueWilhelm Ernst, Hereditary Prince of Saxe-Weimar
Princess Wilhelmine Auguste
Johann Wilhelm, Hereditary Prince of Saxe-Weimar
Princess Charlotte Agnes Leopoldina
Princess Johanna Eleonore Henriette
Ernestine Albertine, Countess of Lippe-Alverdissen
Bernhardina, Princess of Schwarzburg-Rudolstadt
Prince Emmanuel Frederick
Karl August Eugen, Hereditary Prince of Saxe-Weimar
Ernest Augustus II, Duke of Saxe-Weimar-Eisenach
Princess Eleonore Christiane
Princess Johanna Auguste
Ernestine, Duchess of Saxe-Hildburghausen
Prince Ernst Adolf
HouseHouse of Saxe-Weimar-Eisenach
FatherJohann Ernst III, Duke of Saxe-Weimar
MotherSophie Auguste of Anhalt-Zerbst
ReligionLutheranism