Category:Johann Georg Adolf, Hereditary Prince of Saxe-Weissenfels

Johann Georg Adolf von Sachsen-Weissenfels 

(1740-1740)
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Date of birth	17 May 1740
Date of death	10 July 1740
Father	Johann Adolf II, Duke of Saxe-Weissenfels
Mother	Friederike of Saxe-Gotha-Altenburg
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Johann Georg Adolf, Hereditary Prince of Saxe-Weissenfels (17 May 1740 – 10 July 1740) was the heir apparent to the Duchy of Saxe-Weissenfels, ruled by a cadet branch of the Albertine House of Wettin. He was the last Hereditary Prince. Upon his father's death in 1746 the Weissenfels branch of the House of Wettin became extinct and the Duchy of Saxe-Weissenfels was absorbed into the Electorate of Saxony.