Ernst August I, Duke o Saxe-Weimar-Eisenach

Ernst August I, Duke o Saxe-Weimar (19 Aprile 1688 – 19 Januar 1748), wis a duke o Saxe-Weimar an, frae 1741, o Saxe-Weimar-Eisenach.

Ernst August I
Duke o Saxe-Weimar and Eisenach
Duke o Saxe-Weimar
Ring	1707–1748
Predecessor	Wilhelm Ernst with John Ernst III
Successor	Ernst August II
Co-ruler	Wilhelm Ernst
Duke o Saxe-Eisenach
Ring	1741–1748
Predecessor	Wilhelm Heinrich
Successor	Ernest Augustus II
Born	19 Apryle 1688(1688-04-19) Weimar
Dee'd	19 Januar 1748(1748-01-19) (aged 59) Eisenach
Spouse	Eleonore Wilhelmine o Anhalt-Köthen Sophie Charlotte o Brandenburg-Bayreuth
Issue	Wilhelm Ernst, Hereditary Prince o Saxe-Weimar Princess Wilhelmine Auguste Johann Wilhelm, Hereditary Prince o Saxe-Weimar Princess Charlotte Agnes Leopoldina Princess Johanna Eleonore Henriette Ernestine Albertine, Coontess o Lippe-Alverdissen Bernhardina, Princess o Schwarzburg-Rudolstadt Prince Emmanuel Frederick Karl August Eugen, Hereditary Prince o Saxe-Weimar Ernst August II, Duke o Saxe-Weimar-Eisenach Princess Eleonore Christiane Princess Johanna Auguste Ernestine, Duchess o Saxe-Hildburghausen Prince Ernst Adolf
Hoose	House of Saxe-Weimar-Eisenach
Faither	Johann Ernst III, Duke o Saxe-Weimar
Mither	Sophie Auguste o Anhalt-Zerbst
Releegion	Lutheranism

First mairiage

In Nienburg on 24 Januar 1716, Ernst August mairit Eleonore Wilhelmine o Anhalt-Köthen, dochter o Emmanuel Lebrecht, Prince o Anhalt-Köthen.

Issue

1. Wilhelm Ernst, Hereditary Prince o Saxe-Weimar (4 Julie 1717 – 8 Juin 1719),
2. Princess Wilhelmine Auguste (4 Julie 1717 – 9 December 1752), twin o Wilhelm Ernst.
3. Johann Wilhelm, Hereditary Prince o Saxe-Weimar (10 Januar 1719 – 6 December 1732)
4. Princess Charlotte Agnes Leopoldina (4 December 1720 – d. Weimar, 15 October 1724).
5. Princess Johanna Eleonore Henriette (2 December 1721 – 17 Juin 1722).
6. Princess Ernestine Albertine o Saxe-Weimar (28 December 1722 – 25 November 1769), mairit Philipp II, Coont o Schaumburg-Lippe.
7. Bernhardina Christina Sophia (5 Mey 1724 – 5 Juin 1757), mairit Johann Friedrich, Prince o Schwarzburg-Rudolstadt.
8. Prince Emmanuel Friedrich Wilhelm Bernard (19 December 1725 – 11 Juin 1729).

Efter the daith o his first wife in 1726, the duke decided nae tae mairy again, choosing tae live quietly with his Leddies o Honour an Chamber Weemen. But in 1732 the situation changed unexpectedly: his anly surviving son, the hereditary prince (Erbprinz) Johann Wilhelm, died. This made it necessary for him tae find a new wife an sire sons in order tae perpetuate the dynasty.

Seicont mairiage

In Bayreuth on 7 April 1734, Ernst August married his second wife, Sophie Charlotte o Brandenburg-Bayreuth, dochter o George Frederick Charles, Margrave o Brandenburg-Bayreuth.

Issue

1. Karl August Eugen (1 Januar 1735 – 13 September 1736) Hereditary Prince o Saxe-Weimar.
2. Ernst August II, Duke o Saxe-Weimar-Eisenach (2 Juin 1737 – 28 Mey 1758).
3. Ernestine Auguste Sophie (4 January 1740 – 10 Juin 1786), mairit Ernst Frederick III Karl, Duke o Saxe-Hildburghausen.
4. Ernest Adolph Felix (born an died 23 Januar 1741 / 1742 – 1743)