Ernest Augustus II, Duke of Saxe-Weimar-Eisenach

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Ernest Augustus II
Duke of Saxe-Weimar
Reign	1748–1758
Predecessor	Ernest Augustus I
Successor	Charles Augustus
Regent	Duke Francis Josias Duke Frederick III
Duke of Saxe-Eisenach
Reign	1748-1758
Predecessor	Ernest Augustus I
Successor	Charles Augustus
Regent	Duke Francis Josias
Born	(1737-06-02)2 June 1737 Weimar
Died	28 May 1758(1758-05-28) (aged 20) Weimar
Spouse	Anna Amalia of Brunswick-Wolfenbüttel ​ ​ (m. 1756)​
Issue	Charles Augustus, Grand Duke of Saxe-Weimar-Eisenach Prince Frederick Ferdinand Constantin
Names (German: Ernst August II Konstantin) (English: Ernest Augustus II Constantine)
House	House of Saxe-Weimar-Eisenach
Father	Ernst August I, Duke of Saxe-Weimar
Mother	Margravine Sophie Charlotte of Brandenburg-Bayreuth
Religion	Lutheranism

Ernst August II Konstantin, Duke of Saxe-Weimar-Eisenach (2 June 1737 – 28 May 1758), was the reigning Duke of Saxe-Weimar-Eisenach.